57255687936 has 108 divisors (see below), whose sum is σ = 166270835640. Its totient is φ = 18947819520.

The previous prime is 57255687889. The next prime is 57255687949. The reversal of 57255687936 is 63978655275.

57255687936 is a `hidden beast` number, since 5 + 7 + 2 + 556 + 8 + 79 + 3 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230866 + ... + 409646.

Almost surely, 2^57255687936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57255687936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83135417820).

57255687936 is an abundant number, since it is smaller than the sum of its proper divisors (109015147704).

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

57255687936 is a wasteful number, since it uses less digits than its factorization.

57255687936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178942 (or 178925 counting only the distinct ones).

The product of its digits is 95256000, while the sum is 63.

The spelling of 57255687936 in words is "fifty-seven billion, two hundred fifty-five million, six hundred eighty-seven thousand, nine hundred thirty-six".