Fifty (50) is the number following forty-nine and preceding fifty-one. Other representations of the number include:

Its factorization is

It is the smallest number that can be written as the sum of two squares in two distinct ways: 50 = 12 + 72 = 52 + 52. It is also the sum of three squares, 50 = 32 + 42 + 52.

Fifty is also:

50 Cent is a rapper.

See also: forty, fifty, sixty, integer, list of numbers.

This article is about the number. For the year AD 50, see 50.