57023993 has 16 divisors (see below), whose sum is σ = 63737856. Its totient is φ = 50673600.

The previous prime is 57023957. The next prime is 57024041. The reversal of 57023993 is 39932075.

It is a cyclic number.

It is not a de Polignac number, because 57023993 - 2¹⁶ = 56958457 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57023093) 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, 48968 + ... + 50118.

It is an arithmetic number, because the mean of its divisors is an integer number (3983616).

Almost surely, 2^57023993 is an apocalyptic number.

It is an amenable number.

57023993 is a deficient number, since it is larger than the sum of its proper divisors (6713863).

57023993 is a wasteful number, since it uses less digits than its factorization.

57023993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 57023993 is about 7551.4232433363. The cubic root of 57023993 is about 384.9041038498.

The spelling of 57023993 in words is "fifty-seven million, twenty-three thousand, nine hundred ninety-three".