56663864 has 8 divisors (see below), whose sum is σ = 106244760. Its totient is φ = 28331928.

The previous prime is 56663863. The next prime is 56663891. The reversal of 56663864 is 46836665.

56663864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56663861) by changing a digit.

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 as a sum of consecutive naturals, namely, 3541484 + ... + 3541499.

It is an arithmetic number, because the mean of its divisors is an integer number (13280595).

Almost surely, 2^56663864 is an apocalyptic number.

It is an amenable number.

56663864 is a deficient number, since it is larger than the sum of its proper divisors (49580896).

56663864 is a wasteful number, since it uses less digits than its factorization.

56663864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082989 (or 7082985 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

The square root of 56663864 is about 7527.5403685400. The cubic root of 56663864 is about 384.0921183801.

The spelling of 56663864 in words is "fifty-six million, six hundred sixty-three thousand, eight hundred sixty-four".