57040566 has 16 divisors (see below), whose sum is σ = 124452288. Its totient is φ = 17285000.

The previous prime is 57040549. The next prime is 57040579. The reversal of 57040566 is 66504075.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432060 + ... + 432191.

It is an arithmetic number, because the mean of its divisors is an integer number (7778268).

Almost surely, 2^57040566 is an apocalyptic number.

57040566 is an abundant number, since it is smaller than the sum of its proper divisors (67411722).

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

57040566 is a wasteful number, since it uses less digits than its factorization.

57040566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864267.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 57040566 is about 7552.5205064270. The cubic root of 57040566 is about 384.9413887276.

The spelling of 57040566 in words is "fifty-seven million, forty thousand, five hundred sixty-six".