13257631252 has 12 divisors (see below), whose sum is σ = 23377961376. Its totient is φ = 6578213720.

The previous prime is 13257631217. The next prime is 13257631253. The reversal of 13257631252 is 25213675231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13257631253) 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, 12649888 + ... + 12650935.

It is an arithmetic number, because the mean of its divisors is an integer number (1948163448).

Almost surely, 2^13257631252 is an apocalyptic number.

It is an amenable number.

13257631252 is a deficient number, since it is larger than the sum of its proper divisors (10120330124).

13257631252 is a wasteful number, since it uses less digits than its factorization.

13257631252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25300958 (or 25300956 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The spelling of 13257631252 in words is "thirteen billion, two hundred fifty-seven million, six hundred thirty-one thousand, two hundred fifty-two".