57117717256 has 32 divisors (see below), whose sum is σ = 111226095000. Its totient is φ = 27474771456.

The previous prime is 57117717211. The next prime is 57117717271. The reversal of 57117717256 is 65271771175.

It can be written as a sum of positive squares in 4 ways, for example, as 47624332900 + 9493384356 = 218230^2 + 97434^2 .

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 7 ways as a sum of consecutive naturals, for example, 1057731 + ... + 1110418.

Almost surely, 2^57117717256 is an apocalyptic number.

It is an amenable number.

57117717256 is a deficient number, since it is larger than the sum of its proper divisors (54108377744).

57117717256 is a wasteful number, since it uses less digits than its factorization.

57117717256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168281 (or 2168277 counting only the distinct ones).

The product of its digits is 720300, while the sum is 49.

The spelling of 57117717256 in words is "fifty-seven billion, one hundred seventeen million, seven hundred seventeen thousand, two hundred fifty-six".