57457402956 has 36 divisors (see below), whose sum is σ = 145818212904. Its totient is φ = 19076160000.

The previous prime is 57457402921. The next prime is 57457402957. The reversal of 57457402956 is 65920475475.

It is a happy number.

57457402956 is a `hidden beast` number, since 574 + 5 + 7 + 40 + 29 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (57457402957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3170325 + ... + 3188396.

It is an arithmetic number, because the mean of its divisors is an integer number (4050505914).

Almost surely, 2^57457402956 is an apocalyptic number.

It is an amenable number.

57457402956 is an abundant number, since it is smaller than the sum of its proper divisors (88360809948).

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

57457402956 is a wasteful number, since it uses less digits than its factorization.

57457402956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358982 (or 6358977 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 57457402956 in words is "fifty-seven billion, four hundred fifty-seven million, four hundred two thousand, nine hundred fifty-six".