25513525132 has 12 divisors (see below), whose sum is σ = 47275061400. Its totient is φ = 12006364736.

The previous prime is 25513525129. The next prime is 25513525139. The reversal of 25513525132 is 23152531552.

It is a super-2 number, since 2×25513525132² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (25513525139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187599382 + ... + 187599517.

It is an arithmetic number, because the mean of its divisors is an integer number (3939588450).

Almost surely, 2^25513525132 is an apocalyptic number.

It is an amenable number.

25513525132 is a deficient number, since it is larger than the sum of its proper divisors (21761536268).

25513525132 is a wasteful number, since it uses less digits than its factorization.

25513525132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375198920 (or 375198918 counting only the distinct ones).

The product of its digits is 45000, while the sum is 34.

The spelling of 25513525132 in words is "twenty-five billion, five hundred thirteen million, five hundred twenty-five thousand, one hundred thirty-two".