255916031 has 8 divisors (see below), whose sum is σ = 294271104. Its totient is φ = 218009880.

The previous prime is 255916019. The next prime is 255916033. The reversal of 255916031 is 130619552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255916031 - 2¹⁴ = 255899647 is a prime.

It is a super-2 number, since 2×255916031² = 130986029845585922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255916033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111005 + ... + 113286.

It is an arithmetic number, because the mean of its divisors is an integer number (36783888).

Almost surely, 2^255916031 is an apocalyptic number.

255916031 is a deficient number, since it is larger than the sum of its proper divisors (38355073).

255916031 is a wasteful number, since it uses less digits than its factorization.

255916031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224461.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 255916031 is about 15997.3757535416. The cubic root of 255916031 is about 634.8909900294.

The spelling of 255916031 in words is "two hundred fifty-five million, nine hundred sixteen thousand, thirty-one".