31325511325 has 12 divisors (see below), whose sum is σ = 38847968928. Its totient is φ = 25057612400.

The previous prime is 31325511311. The next prime is 31325511341. The reversal of 31325511325 is 52311552313.

It is not a de Polignac number, because 31325511325 - 2⁷ = 31325511197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175470 + ... + 305680.

It is an arithmetic number, because the mean of its divisors is an integer number (3237330744).

Almost surely, 2^31325511325 is an apocalyptic number.

It is an amenable number.

31325511325 is a deficient number, since it is larger than the sum of its proper divisors (7522457603).

31325511325 is a wasteful number, since it uses less digits than its factorization.

31325511325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139844 (or 139839 counting only the distinct ones).

The product of its digits is 13500, while the sum is 31.

The spelling of 31325511325 in words is "thirty-one billion, three hundred twenty-five million, five hundred eleven thousand, three hundred twenty-five".