56077857 has 12 divisors (see below), whose sum is σ = 88365264. Its totient is φ = 33986520.

The previous prime is 56077843. The next prime is 56077867. The reversal of 56077857 is 75877065.

56077857 is a `hidden beast` number, since 560 + 7 + 7 + 85 + 7 = 666.

It is not a de Polignac number, because 56077857 - 2¹⁶ = 56012321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56077817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283123 + ... + 283320.

It is an arithmetic number, because the mean of its divisors is an integer number (7363772).

Almost surely, 2^56077857 is an apocalyptic number.

It is an amenable number.

56077857 is a deficient number, since it is larger than the sum of its proper divisors (32287407).

56077857 is a wasteful number, since it uses less digits than its factorization.

56077857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566460 (or 566457 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 56077857 is about 7488.5150063280. The cubic root of 56077857 is about 382.7634581196.

The spelling of 56077857 in words is "fifty-six million, seventy-seven thousand, eight hundred fifty-seven".