31325464625 has 32 divisors (see below), whose sum is σ = 48115931136. Its totient is φ = 19827979200.

The previous prime is 31325464571. The next prime is 31325464663. The reversal of 31325464625 is 52646452313.

It is not a de Polignac number, because 31325464625 - 2¹⁴ = 31325448241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1365569 + ... + 1388318.

It is an arithmetic number, because the mean of its divisors is an integer number (1503622848).

Almost surely, 2^31325464625 is an apocalyptic number.

31325464625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31325464625 is a deficient number, since it is larger than the sum of its proper divisors (16790466511).

31325464625 is a wasteful number, since it uses less digits than its factorization.

31325464625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753922 (or 2753912 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The spelling of 31325464625 in words is "thirty-one billion, three hundred twenty-five million, four hundred sixty-four thousand, six hundred twenty-five".