56633621 has 8 divisors (see below), whose sum is σ = 63775488. Its totient is φ = 49824000.

The previous prime is 56633611. The next prime is 56633651. The reversal of 56633621 is 12633665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56633621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56633611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82700 + ... + 83381.

It is an arithmetic number, because the mean of its divisors is an integer number (7971936).

Almost surely, 2^56633621 is an apocalyptic number.

It is an amenable number.

56633621 is a deficient number, since it is larger than the sum of its proper divisors (7141867).

56633621 is a wasteful number, since it uses less digits than its factorization.

56633621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166123.

The product of its digits is 19440, while the sum is 32.

The square root of 56633621 is about 7525.5312769266. The cubic root of 56633621 is about 384.0237728519.

The spelling of 56633621 in words is "fifty-six million, six hundred thirty-three thousand, six hundred twenty-one".