255311256 has 16 divisors (see below), whose sum is σ = 638278200. Its totient is φ = 85103744.

The previous prime is 255311239. The next prime is 255311263. The reversal of 255311256 is 652113552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5318961 + ... + 5319008.

Almost surely, 2^255311256 is an apocalyptic number.

It is an amenable number.

255311256 is an abundant number, since it is smaller than the sum of its proper divisors (382966944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255311256 is a wasteful number, since it uses less digits than its factorization.

255311256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637978 (or 10637974 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 255311256 is about 15978.4622539217. The cubic root of 255311256 is about 634.3904755250.

The spelling of 255311256 in words is "two hundred fifty-five million, three hundred eleven thousand, two hundred fifty-six".