56986785 has 12 divisors (see below), whose sum is σ = 98777172. Its totient is φ = 30392928.

The previous prime is 56986777. The next prime is 56986799. The reversal of 56986785 is 58768965.

56986785 is a `hidden beast` number, since 569 + 8 + 6 + 78 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13307904 + 43678881 = 3648^2 + 6609^2 .

It is not a de Polignac number, because 56986785 - 2³ = 56986777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633142 + ... + 633231.

It is an arithmetic number, because the mean of its divisors is an integer number (8231431).

Almost surely, 2^56986785 is an apocalyptic number.

It is an amenable number.

56986785 is a deficient number, since it is larger than the sum of its proper divisors (41790387).

56986785 is a wasteful number, since it uses less digits than its factorization.

56986785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266384 (or 1266381 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 56986785 is about 7548.9591997838. The cubic root of 56986785 is about 384.8203693421.

The spelling of 56986785 in words is "fifty-six million, nine hundred eighty-six thousand, seven hundred eighty-five".