50 (fifty) is the

natural number In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...

following 49 and preceding 51.

In mathematics

Fifty is the smallest number that is the sum of two non-zero

square numbers In mathematics, a square number or perfect square is an integer that is the square of an integer; in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals and can be written as . The us ...

in two distinct ways. 50 is a

Stirling number of the first kind In mathematics, especially in combinatorics, Stirling numbers of the first kind arise in the study of permutations. In particular, the unsigned Stirling numbers of the first kind count permutations according to their number of cycles (counting fi ...

and a

Narayana number In combinatorics, the Narayana numbers \operatorname(n, k), n \in \mathbb^+, 1 \le k \le n form a triangular array of natural numbers, called the Narayana triangle, that occur in various Combinatorial enumeration, counting problems. They are named ...

In science

* The fifth magic number in nuclear physics

In religion

* The traditional number of years in a

jubilee A jubilee is often used to refer to the celebration of a particular anniversary of an event, usually denoting the 25th, 40th, 50th, 60th, and the 70th anniversary. The term comes from the Hebrew Bible (see, "Old Testament"), initially concerning ...

period.Leviticus 25:10 * The

Solemnity In the liturgical calendar of the Roman Rite, a solemnity is a feast day of the highest rank celebrating a mystery of faith such as the Trinity, an event in the life of Jesus, his mother Mary, his legal father Joseph, or another important ...

Pentecost Pentecost (also called Whit Sunday, Whitsunday or Whitsun) is a Christianity, Christian holiday which takes place on the 49th day (50th day when inclusive counting is used) after Easter Day, Easter. It commemorates the descent of the Holy Spiri ...

is celebrated fifty days from and including Easter Sunday. The Greek word pentekoste means fiftieth, hence the name. * The fifty

Hail Mary The Hail Mary or Ave Maria (from its first words in Latin), also known as the Angelic or Angelical Salutation, is a traditional Catholic prayer addressing Mary, the mother of Jesus. The prayer is based on two biblical passages featured in the ...

during the meditation of the mysteries of the life of Jesus and the Virgin Mary of the Holy Rosary * In Hindu tantric tradition, the number 50 holds significance as the 50

Rudras Rudras refer to the forms of the god Rudra, whose traditions have since been associated with lord Shiva. They make up eleven of the thirty-three gods in the Vedic pantheon.Hopkins pp. 172-3 They are at times identified with the storm deities ref ...

in the Malinīvijayottara correlate with the 50

phoneme A phoneme () is any set of similar Phone (phonetics), speech sounds that are perceptually regarded by the speakers of a language as a single basic sound—a smallest possible Phonetics, phonetic unit—that helps distinguish one word fr ...

s of

Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...

, as well as with the 50 severed heads worn around goddess Kali's head. The

mantra A mantra ( ; Pali: ''mantra'') or mantram (Devanagari: मन्त्रम्) is a sacred utterance, a numinous sound, a syllable, word or phonemes, or group of words (most often in an Indo-Iranian language like Sanskrit or Avestan) belie ...

''Aham'' ("I am"), as laid out in the Vijñāna Bhairava represents the first अ(a) and last ह(ha) phonemes of the Sanskrit alphabet and is believed to represent

ultimate reality Ultimate reality is "the supreme, final, and fundamental power in all reality". It refers to the most fundamental fact about reality, especially when it is seen as also being the most valuable fact. This may overlap with the concept of the Absolut ...

, in accordance with its

non-dual Nondualism includes a number of philosophical and spiritual traditions that emphasize the absence of fundamental duality or separation in existence. This viewpoint questions the boundaries conventionally imposed between self and other, min ...

philosophy.

In other fields

* The

percentage In mathematics, a percentage () is a number or ratio expressed as a fraction (mathematics), fraction of 100. It is often Denotation, denoted using the ''percent sign'' (%), although the abbreviations ''pct.'', ''pct'', and sometimes ''pc'' are ...

(50%) equivalent to one half, so that the phrase "fifty-fifty" commonly expresses something divided equally in two; in business this is often denoted as being the ultimate in equal partnership * In years of marriage, the gold or "golden"

wedding anniversary A wedding anniversary is the anniversary of the date that a wedding took place. Couples often mark the occasion by celebrating their relationship, either privately or with a larger party. Special celebrations and gifts are often given for partic ...

References

{{DEFAULTSORT:50 (Number) * Integers