57256504123 has 64 divisors (see below), whose sum is σ = 75343564800. Its totient is φ = 42247941120.

The previous prime is 57256504103. The next prime is 57256504133. The reversal of 57256504123 is 32140565275.

It is not a de Polignac number, because 57256504123 - 2²¹ = 57254406971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57256504103) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 41701065 + ... + 41702437.

It is an arithmetic number, because the mean of its divisors is an integer number (1177243200).

Almost surely, 2^57256504123 is an apocalyptic number.

57256504123 is a deficient number, since it is larger than the sum of its proper divisors (18087060677).

57256504123 is a wasteful number, since it uses less digits than its factorization.

57256504123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 57256504123 in words is "fifty-seven billion, two hundred fifty-six million, five hundred four thousand, one hundred twenty-three".