56816786 has 24 divisors (see below), whose sum is σ = 93207024. Its totient is φ = 25961520.

The previous prime is 56816779. The next prime is 56816791. The reversal of 56816786 is 68761865.

56816786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56816786.

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 11 ways as a sum of consecutive naturals, for example, 35381 + ... + 36951.

It is an arithmetic number, because the mean of its divisors is an integer number (3883626).

Almost surely, 2^56816786 is an apocalyptic number.

56816786 is a deficient number, since it is larger than the sum of its proper divisors (36390238).

56816786 is a wasteful number, since it uses less digits than its factorization.

56816786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1693 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 56816786 is about 7537.6910257718. The cubic root of 56816786 is about 384.4373317823.

The spelling of 56816786 in words is "fifty-six million, eight hundred sixteen thousand, seven hundred eighty-six".