56947816 has 32 divisors (see below), whose sum is σ = 112343040. Its totient is φ = 27010368.

The previous prime is 56947801. The next prime is 56947829. The reversal of 56947816 is 61874965.

56947816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an alternating number because its digits alternate between odd and even.

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 7 ways as a sum of consecutive naturals, for example, 22150 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (3510720).

Almost surely, 2^56947816 is an apocalyptic number.

It is an amenable number.

56947816 is a deficient number, since it is larger than the sum of its proper divisors (55395224).

56947816 is a wasteful number, since it uses less digits than its factorization.

56947816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593 (or 2589 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 56947816 is about 7546.3776740897. The cubic root of 56947816 is about 384.7326327175.

The spelling of 56947816 in words is "fifty-six million, nine hundred forty-seven thousand, eight hundred sixteen".