56720808375 has 256 divisors, whose sum is σ = 121284034560. Its totient is φ = 22861440000.

The previous prime is 56720808373. The next prime is 56720808383. The reversal of 56720808375 is 57380802765.

It is not a de Polignac number, because 56720808375 - 2¹ = 56720808373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720808371) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 149658936 + ... + 149659314.

It is an arithmetic number, because the mean of its divisors is an integer number (473765760).

Almost surely, 2^56720808375 is an apocalyptic number.

56720808375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56720808375 is an abundant number, since it is smaller than the sum of its proper divisors (64563226185).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56720808375 is a wasteful number, since it uses less digits than its factorization.

56720808375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 56720808375 in words is "fifty-six billion, seven hundred twenty million, eight hundred eight thousand, three hundred seventy-five".