56816785 has 16 divisors (see below), whose sum is σ = 71352576. Its totient is φ = 43350208.

The previous prime is 56816779. The next prime is 56816791. The reversal of 56816785 is 58761865.

56816785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56816779) and next prime (56816791).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56816785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 63612 + ... + 64498.

It is an arithmetic number, because the mean of its divisors is an integer number (4459536).

Almost surely, 2^56816785 is an apocalyptic number.

It is an amenable number.

56816785 is a deficient number, since it is larger than the sum of its proper divisors (14535791).

56816785 is a wasteful number, since it uses less digits than its factorization.

56816785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its digits is 403200, while the sum is 46.

The square root of 56816785 is about 7537.6909594384. The cubic root of 56816785 is about 384.4373295269.

The spelling of 56816785 in words is "fifty-six million, eight hundred sixteen thousand, seven hundred eighty-five".