57077761 has 16 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 51393600.

The previous prime is 57077753. The next prime is 57077773. The reversal of 57077761 is 16777075.

It is a cyclic number.

It is not a de Polignac number, because 57077761 - 2³ = 57077753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57077711) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 132216 + ... + 132646.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^57077761 is an apocalyptic number.

It is an amenable number.

57077761 is a deficient number, since it is larger than the sum of its proper divisors (5918207).

57077761 is a wasteful number, since it uses less digits than its factorization.

57077761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 72030, while the sum is 40.

The square root of 57077761 is about 7554.9825281069. The cubic root of 57077761 is about 385.0250413801.

The spelling of 57077761 in words is "fifty-seven million, seventy-seven thousand, seven hundred sixty-one".