57566065 has 16 divisors (see below), whose sum is σ = 70512192. Its totient is φ = 45105984.

The previous prime is 57566027. The next prime is 57566081. The reversal of 57566065 is 56066575.

It is a cyclic number.

It is not a de Polignac number, because 57566065 - 2¹³ = 57557873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75667 + ... + 76423.

It is an arithmetic number, because the mean of its divisors is an integer number (4407012).

Almost surely, 2^57566065 is an apocalyptic number.

It is an amenable number.

57566065 is a deficient number, since it is larger than the sum of its proper divisors (12946127).

57566065 is a wasteful number, since it uses less digits than its factorization.

57566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 57566065 is about 7587.2303905971. The cubic root of 57566065 is about 386.1198966232.

The spelling of 57566065 in words is "fifty-seven million, five hundred sixty-six thousand, sixty-five".