56793621 has 4 divisors (see below), whose sum is σ = 75724832. Its totient is φ = 37862412.

The previous prime is 56793563. The next prime is 56793673. The reversal of 56793621 is 12639765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56793621 - 2⁷ = 56793493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56793621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56793521) 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, 9465601 + ... + 9465606.

It is an arithmetic number, because the mean of its divisors is an integer number (18931208).

Almost surely, 2^56793621 is an apocalyptic number.

It is an amenable number.

56793621 is a deficient number, since it is larger than the sum of its proper divisors (18931211).

56793621 is a wasteful number, since it uses less digits than its factorization.

56793621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18931210.

The product of its digits is 68040, while the sum is 39.

The square root of 56793621 is about 7536.1542579754. The cubic root of 56793621 is about 384.3850778506.

The spelling of 56793621 in words is "fifty-six million, seven hundred ninety-three thousand, six hundred twenty-one".