59

59 is the 17th smallest prime number.

59 is also a safe prime; that is, a prime of the form 2p + 1, where p is also a prime: 59 = 2 x 29 + 1.

An icosahedron has 59 stellations (including the icosahedron itself).

59 and 61 form a twin prime pair.

M59 is a galaxy in the constellation Virgo.

Source: Wikipedia