57256117265560 has 32 divisors (see below), whose sum is σ = 128839881258000. Its totient is φ = 22900026033280.

The previous prime is 57256117265519. The next prime is 57256117265639. The reversal of 57256117265560 is 6556271165275.

It is a super-2 number, since 2×57256117265560² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57256117265495 and 57256117265504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75269110 + ... + 76025989.

Almost surely, 2^{57256117265560} is an apocalyptic number.

It is an amenable number.

57256117265560 is an abundant number, since it is smaller than the sum of its proper divisors (71583763992440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57256117265560 is a wasteful number, since it uses less digits than its factorization.

57256117265560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151304571 (or 151304567 counting only the distinct ones).

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 57256117265560 in words is "fifty-seven trillion, two hundred fifty-six billion, one hundred seventeen million, two hundred sixty-five thousand, five hundred sixty".