31540522256 has 10 divisors (see below), whose sum is σ = 61109761902. Its totient is φ = 15770261120.

The previous prime is 31540522213. The next prime is 31540522283. The reversal of 31540522256 is 65222504513.

It can be written as a sum of positive squares in only one way, i.e., 21597241600 + 9943280656 = 146960^2 + 99716^2 .

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 as a sum of consecutive naturals, namely, 985641305 + ... + 985641336.

Almost surely, 2^31540522256 is an apocalyptic number.

It is an amenable number.

31540522256 is a deficient number, since it is larger than the sum of its proper divisors (29569239646).

31540522256 is a wasteful number, since it uses less digits than its factorization.

31540522256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971282649 (or 1971282643 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 31540522256 in words is "thirty-one billion, five hundred forty million, five hundred twenty-two thousand, two hundred fifty-six".