56857635 has 12 divisors (see below), whose sum is σ = 98553312. Its totient is φ = 30324048.

The previous prime is 56857621. The next prime is 56857637. The reversal of 56857635 is 53675865.

56857635 is a `hidden beast` number, since 5 + 6 + 8 + 5 + 7 + 635 = 666.

It is not a de Polignac number, because 56857635 - 2¹⁷ = 56726563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1263503 = 56857635 / (5 + 6 + 8 + 5 + 7 + 6 + 3 + 5).

It is not an unprimeable number, because it can be changed into a prime (56857637) 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, 631707 + ... + 631796.

It is an arithmetic number, because the mean of its divisors is an integer number (8212776).

Almost surely, 2^56857635 is an apocalyptic number.

56857635 is a deficient number, since it is larger than the sum of its proper divisors (41695677).

56857635 is a wasteful number, since it uses less digits than its factorization.

56857635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263514 (or 1263511 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 56857635 is about 7540.4001883189. The cubic root of 56857635 is about 384.5294414075.

The spelling of 56857635 in words is "fifty-six million, eight hundred fifty-seven thousand, six hundred thirty-five".