255526402131 has 48 divisors (see below), whose sum is σ = 495566373120. Its totient is φ = 122530138560.

The previous prime is 255526402123. The next prime is 255526402139. The reversal of 255526402131 is 131204625552.

255526402131 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 2 + 640 + 2 + 1 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (255526402123) and next prime (255526402139).

It is not a de Polignac number, because 255526402131 - 2³ = 255526402123 is a prime.

It is a super-2 number, since 2×255526402131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255526402139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14172721 + ... + 14190738.

It is an arithmetic number, because the mean of its divisors is an integer number (10324299440).

Almost surely, 2^255526402131 is an apocalyptic number.

255526402131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

255526402131 is a deficient number, since it is larger than the sum of its proper divisors (240039970989).

255526402131 is a wasteful number, since it uses less digits than its factorization.

255526402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28363496 (or 28363493 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 255526402131 in words is "two hundred fifty-five billion, five hundred twenty-six million, four hundred two thousand, one hundred thirty-one".