56621373 has 8 divisors (see below), whose sum is σ = 79936128. Its totient is φ = 35527104.

The previous prime is 56621351. The next prime is 56621381. The reversal of 56621373 is 37312665.

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

It is not a de Polignac number, because 56621373 - 2¹⁸ = 56359229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56621303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555061 + ... + 555162.

It is an arithmetic number, because the mean of its divisors is an integer number (9992016).

Almost surely, 2^56621373 is an apocalyptic number.

It is an amenable number.

56621373 is a deficient number, since it is larger than the sum of its proper divisors (23314755).

56621373 is a wasteful number, since it uses less digits than its factorization.

56621373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110243.

The product of its digits is 22680, while the sum is 33.

The square root of 56621373 is about 7524.7174697792. The cubic root of 56621373 is about 383.9960869284.

The spelling of 56621373 in words is "fifty-six million, six hundred twenty-one thousand, three hundred seventy-three".