255513532131 has 96 divisors (see below), whose sum is σ = 450023438592. Its totient is φ = 142828479360.

The previous prime is 255513532121. The next prime is 255513532177. The reversal of 255513532131 is 131235315552.

255513532131 is a `hidden beast` number, since 2 + 5 + 5 + 513 + 5 + 3 + 2 + 131 = 666.

It is not a de Polignac number, because 255513532131 - 2²⁷ = 255379314403 is a prime.

It is a super-2 number, since 2×255513532131² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (255513532121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60217896 + ... + 60222138.

It is an arithmetic number, because the mean of its divisors is an integer number (4687744152).

Almost surely, 2^255513532131 is an apocalyptic number.

255513532131 is a deficient number, since it is larger than the sum of its proper divisors (194509906461).

255513532131 is a wasteful number, since it uses less digits than its factorization.

255513532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015 (or 6003 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

Adding to 255513532131 its reverse (131235315552), we get a palindrome (386748847683).

The spelling of 255513532131 in words is "two hundred fifty-five billion, five hundred thirteen million, five hundred thirty-two thousand, one hundred thirty-one".