57185090 has 16 divisors (see below), whose sum is σ = 103023360. Its totient is φ = 22854000.

The previous prime is 57185083. The next prime is 57185131. The reversal of 57185090 is 9058175.

It is a self number, because there is not a number n which added to its sum of digits gives 57185090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15965 + ... + 19215.

It is an arithmetic number, because the mean of its divisors is an integer number (6438960).

Almost surely, 2^57185090 is an apocalyptic number.

57185090 is a deficient number, since it is larger than the sum of its proper divisors (45838270).

57185090 is a wasteful number, since it uses less digits than its factorization.

57185090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 57185090 is about 7562.0823851635. The cubic root of 57185090 is about 385.2662239170.

The spelling of 57185090 in words is "fifty-seven million, one hundred eighty-five thousand, ninety".