31198422025 has 12 divisors (see below), whose sum is σ = 38688544732. Its totient is φ = 24957123840.

The previous prime is 31198422019. The next prime is 31198422061. The reversal of 31198422025 is 52022489113.

It can be written as a sum of positive squares in 6 ways, for example, as 5964781824 + 25233640201 = 77232^2 + 158851^2 .

It is not a de Polignac number, because 31198422025 - 2⁵ = 31198421993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491509 + ... + 551341.

Almost surely, 2^31198422025 is an apocalyptic number.

It is an amenable number.

31198422025 is a deficient number, since it is larger than the sum of its proper divisors (7490122707).

31198422025 is a wasteful number, since it uses less digits than its factorization.

31198422025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80700 (or 80695 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 31198422025 in words is "thirty-one billion, one hundred ninety-eight million, four hundred twenty-two thousand, twenty-five".