56697718 has 32 divisors (see below), whose sum is σ = 106437888. Its totient is φ = 22005600.

The previous prime is 56697709. The next prime is 56697721. The reversal of 56697718 is 81779665.

56697718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 52908 + ... + 53968.

It is an arithmetic number, because the mean of its divisors is an integer number (3326184).

Almost surely, 2^56697718 is an apocalyptic number.

56697718 is a deficient number, since it is larger than the sum of its proper divisors (49740170).

56697718 is a wasteful number, since it uses less digits than its factorization.

56697718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its digits is 635040, while the sum is 49.

The square root of 56697718 is about 7529.7887088550. The cubic root of 56697718 is about 384.1685954912.

The spelling of 56697718 in words is "fifty-six million, six hundred ninety-seven thousand, seven hundred eighteen".