57565490 has 16 divisors (see below), whose sum is σ = 104163840. Its totient is φ = 22904880.

The previous prime is 57565489. The next prime is 57565511. The reversal of 57565490 is 9456575.

57565490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13160 + ... + 16979.

It is an arithmetic number, because the mean of its divisors is an integer number (6510240).

Almost surely, 2^57565490 is an apocalyptic number.

57565490 is a deficient number, since it is larger than the sum of its proper divisors (46598350).

57565490 is a wasteful number, since it uses less digits than its factorization.

57565490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30337.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 57565490 is about 7587.1924978875. The cubic root of 57565490 is about 386.1186110296.

The spelling of 57565490 in words is "fifty-seven million, five hundred sixty-five thousand, four hundred ninety".