258256 has 10 divisors (see below), whose sum is σ = 500402. Its totient is φ = 129120.

The previous prime is 258253. The next prime is 258277. The reversal of 258256 is 652852.

258256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 46656 = 460^2 + 216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055 + ... + 8086.

2²⁵⁸²⁵⁶ is an apocalyptic number.

It is an amenable number.

258256 is a deficient number, since it is larger than the sum of its proper divisors (242146).

258256 is a wasteful number, since it uses less digits than its factorization.

258256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16149 (or 16143 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 258256 is about 508.1889412413. The cubic root of 258256 is about 63.6820164677.

It can be divided in two parts, 25 and 8256, that added together give a square (8281 = 91²).

The spelling of 258256 in words is "two hundred fifty-eight thousand, two hundred fifty-six".