55 may refer to: *

55 (number) 55 (fifty-five) is the natural number following 54 (number), 54 and preceding 56 (number), 56. Mathematics 55 is *a triangular number (the sum of the consecutive numbers 1 to 10), and a doubly triangular number. *the 10th Fibonacci number. It is ...

55 BC __NOTOC__ Year 55 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Crassus and Pompey (or, less frequently, year 699 ''Ab urbe condita''). The denomination 55 BC for this year has been us ...

AD 55 AD 55 ( LV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Vetus (or, less frequently, year 808 ''Ab urbe condita''). Th ...

1955 Events January * January 3 – José Ramón Guizado becomes president of Panama. * January 17 – , the first nuclear-powered submarine, puts to sea for the first time, from Groton, Connecticut. * January 18– 20 – Battle of Yijian ...

* 2055

Science

*Caesium, by the element's

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

Astronomy

*Messier object M55, a magnitude 7.0 globular cluster in the constellation Sagittarius *The New General Catalogue object

NGC 55 NGC 55, is a Magellanic type barred spiral galaxy located about 6.5 million light-years away in the constellation Sculptor. Along with its neighbor NGC 300, it is one of the closest galaxies to the Local Group, probably lying between the Milky ...

, a magnitude 7.9 barred spiral galaxy in the constellation Sculptor

Transportation

*The highest speed limit allowed in the United States between 1974 and 1986 per the

National Maximum Speed Law The National Maximum Speed Limit (NMSL) was a provision of the federal government of the United States 1974 Emergency Highway Energy Conservation Act that effectively prohibited speed limits higher than . It was drafted in response to oil price ...

Highway 55 The following highways are numbered 55: International * European route E55 * Arab Mashreq route M55 Argentina * San Luis Provincial Route 55 Australia * Carnarvon Highway * Castlereagh Highway * Karoonda Highway Belgium * N55 road (Belgiu ...

, several roads *

Route 55 (disambiguation) Route 55 may refer to: *Route 55 (MTA Maryland), a bus route in Baltimore, Maryland and its suburbs *London Buses route 55 *Melbourne tram route 55 See also *List of highways numbered 55 The following highways are numbered 55: International * ...

, bus and tram routes

Film

*''

55 Days at Peking ''55 Days at Peking'' is a 1963 American epic historical war film dramatizing the siege of the foreign legations' compounds in Peking (now known as Beijing) during the Boxer Rebellion, which took place in China from 1899 to 1901. It was produc ...

'' a film starring Charlton Heston and David Niven

Other uses

Gazeta 55 ''Gazeta 55'' ( en, Newspaper 55) is an Albanian language newspaper published in Tirana, Albania. The newspaper is a politically unaffiliated daily, with nine reporters on staff records. The tabloid's owner is Fahri Balliu, an Albanian businessma ...

, an Albanian newspaper *

Agitation and Propaganda against the State Constitution 55, or Agitation and Propaganda against the State ( sq, Agjitacion dhe Propagandë kundër shtetit), was a criminal offence in Communist Albania. This law was used from 1945 until 1991 and was part of the Constitution of the People's S ...

, also known as Constitution law 55, a law during Communist Albania. * +55, the code for international direct dial phone calls to Brazil *5:5, law enforcement code for

handcuffs Handcuffs are Physical restraint, restraint devices designed to secure an individual's wrists in proximity to each other. They comprise two parts, linked together by a Link chain, chain, a hinge, or rigid bar. Each cuff has a rotating arm whi ...

* ''55'' (album), by the Knocks *"55 (Hamsa oua Hamsine)", an instrumental by the Master Musicians of Joujouka from ''

Brian Jones Presents the Pipes of Pan at Joujouka ''Brian Jones Presents the Pipes of Pan at Joujouka'' is an album produced by Brian Jones of the Rolling Stones. The album was a recording of the Moroccan group the Master Musicians of Joujouka, in performance on 29 July 1968 in the village of J ...

'' *"Fifty Five", a song by Karma to Burn from the album ''

Arch Stanton ''Arch Stanton'' is the sixth studio album by the instrumental stoner rock band Karma to Burn. It was released on August 18, 2014 by FABA and Deepdive Records. The album will be reissued in 2023 by Heavy Psych Sounds Records. Unlike their previo ...

'', 2014