57020877 has 12 divisors (see below), whose sum is σ = 82735744. Its totient is φ = 37842120.

The previous prime is 57020867. The next prime is 57020879. The reversal of 57020877 is 77802075.

57020877 is a `hidden beast` number, since 570 + 2 + 0 + 87 + 7 = 666.

57020877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57020877 - 2⁴ = 57020861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57020879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12199 + ... + 16212.

Almost surely, 2^57020877 is an apocalyptic number.

It is an amenable number.

57020877 is a deficient number, since it is larger than the sum of its proper divisors (25714867).

57020877 is a wasteful number, since it uses less digits than its factorization.

57020877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28640 (or 28637 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 57020877 is about 7551.2169217948. The cubic root of 57020877 is about 384.8970928651.

The spelling of 57020877 in words is "fifty-seven million, twenty thousand, eight hundred seventy-seven".