57812961 has 16 divisors (see below), whose sum is σ = 82151424. Its totient is φ = 36079824.

The previous prime is 57812959. The next prime is 57812969. The reversal of 57812961 is 16921875.

It is not a de Polignac number, because 57812961 - 2¹ = 57812959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57812969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5671 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (5134464).

Almost surely, 2^57812961 is an apocalyptic number.

It is an amenable number.

57812961 is a deficient number, since it is larger than the sum of its proper divisors (24338463).

57812961 is a wasteful number, since it uses less digits than its factorization.

57812961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17900.

The product of its digits is 30240, while the sum is 39.

The square root of 57812961 is about 7603.4834779856. The cubic root of 57812961 is about 386.6711212164.

The spelling of 57812961 in words is "fifty-seven million, eight hundred twelve thousand, nine hundred sixty-one".