57657385 has 4 divisors (see below), whose sum is σ = 69188868. Its totient is φ = 46125904.

The previous prime is 57657377. The next prime is 57657401. The reversal of 57657385 is 58375675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11471769 + 46185616 = 3387^2 + 6796^2 .

It is a cyclic number.

It is not a de Polignac number, because 57657385 - 2³ = 57657377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5765734 + ... + 5765743.

It is an arithmetic number, because the mean of its divisors is an integer number (17297217).

Almost surely, 2^57657385 is an apocalyptic number.

It is an amenable number.

57657385 is a deficient number, since it is larger than the sum of its proper divisors (11531483).

57657385 is a wasteful number, since it uses less digits than its factorization.

57657385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531482.

The product of its digits is 882000, while the sum is 46.

The square root of 57657385 is about 7593.2460120821. The cubic root of 57657385 is about 386.3239626831.

The spelling of 57657385 in words is "fifty-seven million, six hundred fifty-seven thousand, three hundred eighty-five".