258

258 = 2 x 3 x 43.

258 is the minimum magic sum of a magic square using 16 consecutive primes.

258 is a value of n such that n(n + 9) is a palindrome: 258(267) = 68886.

258 is the sum of four consecutive primes: 258 = 59 + 61 + 67 + 71.

258 Tyche is a relatively large asteroid discovered in 1886.

Source: Prime Curios!