56700621 has 16 divisors (see below), whose sum is σ = 84117120. Its totient is φ = 37748160.

The previous prime is 56700607. The next prime is 56700647. The reversal of 56700621 is 12600765.

It is not a de Polignac number, because 56700621 - 2⁶ = 56700557 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56700421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35976 + ... + 37518.

It is an arithmetic number, because the mean of its divisors is an integer number (5257320).

Almost surely, 2^56700621 is an apocalyptic number.

It is an amenable number.

56700621 is a deficient number, since it is larger than the sum of its proper divisors (27416499).

56700621 is a wasteful number, since it uses less digits than its factorization.

56700621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 56700621 is about 7529.9814740808. The cubic root of 56700621 is about 384.1751520302.

The spelling of 56700621 in words is "fifty-six million, seven hundred thousand, six hundred twenty-one".