31947559325 has 12 divisors (see below), whose sum is σ = 43216335168. Its totient is φ = 23234588400.

The previous prime is 31947559297. The next prime is 31947559351. The reversal of 31947559325 is 52395574913.

It is not a de Polignac number, because 31947559325 - 2⁸ = 31947559069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58086197 + ... + 58086746.

It is an arithmetic number, because the mean of its divisors is an integer number (3601361264).

Almost surely, 2^31947559325 is an apocalyptic number.

It is an amenable number.

31947559325 is a deficient number, since it is larger than the sum of its proper divisors (11268775843).

31947559325 is a wasteful number, since it uses less digits than its factorization.

31947559325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116172964 (or 116172959 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 53.

The spelling of 31947559325 in words is "thirty-one billion, nine hundred forty-seven million, five hundred fifty-nine thousand, three hundred twenty-five".