56007664 has 20 divisors (see below), whose sum is σ = 108716256. Its totient is φ = 27951872.

The previous prime is 56007661. The next prime is 56007667. The reversal of 56007664 is 46670065.

It is an interprime number because it is at equal distance from previous prime (56007661) and next prime (56007667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56007661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6537 + ... + 12439.

Almost surely, 2^56007664 is an apocalyptic number.

It is an amenable number.

56007664 is a deficient number, since it is larger than the sum of its proper divisors (52708592).

56007664 is a wasteful number, since it uses less digits than its factorization.

56007664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504 (or 6498 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 56007664 is about 7483.8268285684. The cubic root of 56007664 is about 382.6036889781.

The spelling of 56007664 in words is "fifty-six million, seven thousand, six hundred sixty-four".