2565225131 has 32 divisors (see below), whose sum is σ = 3245030400. Its totient is φ = 1978058880.

The previous prime is 2565225119. The next prime is 2565225161. The reversal of 2565225131 is 1315225652.

It is not a de Polignac number, because 2565225131 - 2¹⁸ = 2564962987 is a prime.

It is a super-2 number, since 2×2565225131² = 13160759945427934322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2565225161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229826 + ... + 240728.

It is an arithmetic number, because the mean of its divisors is an integer number (101407200).

Almost surely, 2^2565225131 is an apocalyptic number.

2565225131 is a deficient number, since it is larger than the sum of its proper divisors (679805269).

2565225131 is a wasteful number, since it uses less digits than its factorization.

2565225131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11019.

The product of its digits is 18000, while the sum is 32.

The square root of 2565225131 is about 50648.0516012215. The cubic root of 2565225131 is about 1368.9108382099.

The spelling of 2565225131 in words is "two billion, five hundred sixty-five million, two hundred twenty-five thousand, one hundred thirty-one".