255995031 has 4 divisors (see below), whose sum is σ = 341326712. Its totient is φ = 170663352.

The previous prime is 255995029. The next prime is 255995053. The reversal of 255995031 is 130599552.

255995031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255995031 - 2¹ = 255995029 is a prime.

It is a super-2 number, since 2×255995031² = 131066911793381922, 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 (255995011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42665836 + ... + 42665841.

It is an arithmetic number, because the mean of its divisors is an integer number (85331678).

Almost surely, 2^255995031 is an apocalyptic number.

255995031 is a deficient number, since it is larger than the sum of its proper divisors (85331681).

255995031 is an equidigital number, since it uses as much as digits as its factorization.

255995031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85331680.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 255995031 is about 15999.8447179965. The cubic root of 255995031 is about 634.9563125337.

The spelling of 255995031 in words is "two hundred fifty-five million, nine hundred ninety-five thousand, thirty-one".