31172053552 has 20 divisors (see below), whose sum is σ = 60437522376. Its totient is φ = 15575273600.

The previous prime is 31172053547. The next prime is 31172053567. The reversal of 31172053552 is 25535027113.

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 3 ways as a sum of consecutive naturals, for example, 648133 + ... + 694564.

Almost surely, 2^31172053552 is an apocalyptic number.

It is an amenable number.

31172053552 is a deficient number, since it is larger than the sum of its proper divisors (29265468824).

31172053552 is a wasteful number, since it uses less digits than its factorization.

31172053552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344156 (or 1344150 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 31172053552 in words is "thirty-one billion, one hundred seventy-two million, fifty-three thousand, five hundred fifty-two".