31025125404 has 72 divisors (see below), whose sum is σ = 96522622560. Its totient is φ = 8182449792.

The previous prime is 31025125381. The next prime is 31025125421. The reversal of 31025125404 is 40452152013.

31025125404 is a `hidden beast` number, since 3 + 1 + 0 + 251 + 2 + 5 + 404 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4731939 + ... + 4738490.

It is an arithmetic number, because the mean of its divisors is an integer number (1340591980).

Almost surely, 2^31025125404 is an apocalyptic number.

It is an amenable number.

31025125404 is an abundant number, since it is smaller than the sum of its proper divisors (65497497156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31025125404 is a wasteful number, since it uses less digits than its factorization.

31025125404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470459 (or 9470454 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 31025125404 its reverse (40452152013), we get a palindrome (71477277417).

The spelling of 31025125404 in words is "thirty-one billion, twenty-five million, one hundred twenty-five thousand, four hundred four".