56375377920 has 532 divisors, whose sum is σ = 206296448760. Its totient is φ = 14778630144.

The previous prime is 56375377859. The next prime is 56375377939. The reversal of 56375377920 is 2977357365.

56375377920 is a `hidden beast` number, since 5 + 6 + 37 + 537 + 79 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 955514851 + ... + 955514909.

Almost surely, 2^56375377920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56375377920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103148224380).

56375377920 is an abundant number, since it is smaller than the sum of its proper divisors (149921070840).

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

56375377920 is an frugal number, since it uses more digits than its factorization.

56375377920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 8334900, while the sum is 54.

The spelling of 56375377920 in words is "fifty-six billion, three hundred seventy-five million, three hundred seventy-seven thousand, nine hundred twenty".