57656355 has 32 divisors (see below), whose sum is σ = 98115840. Its totient is φ = 28828800.

The previous prime is 57656353. The next prime is 57656369. The reversal of 57656355 is 55365675.

It is a happy number.

It is not a de Polignac number, because 57656355 - 2¹ = 57656353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57656353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27784 + ... + 29786.

It is an arithmetic number, because the mean of its divisors is an integer number (3066120).

Almost surely, 2^57656355 is an apocalyptic number.

57656355 is a deficient number, since it is larger than the sum of its proper divisors (40459485).

57656355 is a wasteful number, since it uses less digits than its factorization.

57656355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131.

The product of its digits is 472500, while the sum is 42.

The square root of 57656355 is about 7593.1781883477. The cubic root of 57656355 is about 386.3216622200.

The spelling of 57656355 in words is "fifty-seven million, six hundred fifty-six thousand, three hundred fifty-five".