2565631732 has 12 divisors (see below), whose sum is σ = 4490478720. Its totient is φ = 1282637816.

The previous prime is 2565631727. The next prime is 2565631781. The reversal of 2565631732 is 2371365652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8932 + ... + 72187.

It is an arithmetic number, because the mean of its divisors is an integer number (374206560).

Almost surely, 2^2565631732 is an apocalyptic number.

It is an amenable number.

2565631732 is a deficient number, since it is larger than the sum of its proper divisors (1924846988).

2565631732 is a wasteful number, since it uses less digits than its factorization.

2565631732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89030 (or 89028 counting only the distinct ones).

The product of its digits is 226800, while the sum is 40.

The square root of 2565631732 is about 50652.0654267918. The cubic root of 2565631732 is about 1368.9831607913.

The spelling of 2565631732 in words is "two billion, five hundred sixty-five million, six hundred thirty-one thousand, seven hundred thirty-two".