57256065 has 40 divisors (see below), whose sum is σ = 103658280. Its totient is φ = 30233088.

The previous prime is 57256027. The next prime is 57256097. The reversal of 57256065 is 56065275.

It can be written as a sum of positive squares in 4 ways, for example, as 28772496 + 28483569 = 5364^2 + 5337^2 .

It is not a de Polignac number, because 57256065 - 2⁷ = 57255937 is a prime.

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 39 ways as a sum of consecutive naturals, for example, 43497 + ... + 44793.

It is an arithmetic number, because the mean of its divisors is an integer number (2591457).

Almost surely, 2^57256065 is an apocalyptic number.

It is an amenable number.

57256065 is a deficient number, since it is larger than the sum of its proper divisors (46402215).

57256065 is a wasteful number, since it uses less digits than its factorization.

57256065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 57256065 is about 7566.7737510778. The cubic root of 57256065 is about 385.4255484618.

The spelling of 57256065 in words is "fifty-seven million, two hundred fifty-six thousand, sixty-five".