Brazil, officially the Federative Republic of Brazil (Portuguese: República Federativa do Brasil), is the largest and most populous country in South America, and the fifth largest in the world in both area and population. Its territory covers 8,514,876.599 km² between central South America and the Atlantic Ocean and it is the easternmost country of the Americas. It borders Venezuela, Suriname, Guyana and the département of French Guiana to the north, Uruguay to the south, Argentina and Paraguay to the southwest, Bolivia and Peru to the west, and Colombia to the northwest. The only South American countries not bordered by Brazil are Ecuador and Chile.
The Brazilian coastline covers 7,367km (4,655 mi) along the Atlantic ocean. Numerous archipelagos are part of the Brazilian territory, such as Penedos de São Pedro e São Paulo, Fernando de Noronha, Trindade e Martim Vaz and Atol das Rocas. Tropical climate is predominant. In the south of the country, subtropical climate prevails. Brazil is traversed by the Equator and Tropic of Capricorn lines. It is home to varied fauna and flora and extensive natural resources.
The Brazilian population tends to concentrate along the coastline in large urban centers. While Brazil has one of the largest populations in the world, population density is low and the inner continental land has large demographical empty spaces. It is a multiracial country composed of European, Amerindian, African and Asian elements, more often combined in the same individual than separated into different communities. The official language is Portuguese, and it is the only Portuguese-speaking country in all the Americas. Catholicism is the predominant religion, though Protestant communities have experienced significant growth in the last decades. Brazil has the largest Roman Catholic population in the world.