57423681 has 32 divisors (see below), whose sum is σ = 102348800. Its totient is φ = 31084560.

The previous prime is 57423679. The next prime is 57423689. The reversal of 57423681 is 18632475.

57423681 is a `hidden beast` number, since 574 + 2 + 3 + 6 + 81 = 666.

57423681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57423681 - 2¹ = 57423679 is a prime.

It is a super-2 number, since 2×57423681² = 6594958279179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57423689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4405 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (3198400).

Almost surely, 2^57423681 is an apocalyptic number.

It is an amenable number.

57423681 is a deficient number, since it is larger than the sum of its proper divisors (44925119).

57423681 is a wasteful number, since it uses less digits than its factorization.

57423681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16026 (or 16020 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 57423681 is about 7577.8414472724. The cubic root of 57423681 is about 385.8012906023.

The spelling of 57423681 in words is "fifty-seven million, four hundred twenty-three thousand, six hundred eighty-one".