255607669931 has 16 divisors (see below), whose sum is σ = 266327263488. Its totient is φ = 245120148000.

The previous prime is 255607669871. The next prime is 255607669937. The reversal of 255607669931 is 139966706552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 255607669931 - 2³⁰ = 254533928107 is a prime.

It is a super-2 number, since 2×255607669931² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255607669937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345706 + ... + 1523856.

It is an arithmetic number, because the mean of its divisors is an integer number (16645453968).

Almost surely, 2^255607669931 is an apocalyptic number.

255607669931 is a deficient number, since it is larger than the sum of its proper divisors (10719593557).

255607669931 is a wasteful number, since it uses less digits than its factorization.

255607669931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178802.

The product of its (nonzero) digits is 18370800, while the sum is 59.

The spelling of 255607669931 in words is "two hundred fifty-five billion, six hundred seven million, six hundred sixty-nine thousand, nine hundred thirty-one".