56391904296 has 256 divisors, whose sum is σ = 199442880000. Its totient is φ = 14359597056.

The previous prime is 56391904291. The next prime is 56391904319. The reversal of 56391904296 is 69240919365.

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

It is not an unprimeable number, because it can be changed into a prime (56391904291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 520560 + ... + 619488.

It is an arithmetic number, because the mean of its divisors is an integer number (779073750).

Almost surely, 2^56391904296 is an apocalyptic number.

56391904296 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56391904296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99721440000).

56391904296 is an abundant number, since it is smaller than the sum of its proper divisors (143050975704).

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

56391904296 is a wasteful number, since it uses less digits than its factorization.

56391904296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98993 (or 98983 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 56391904296 in words is "fifty-six billion, three hundred ninety-one million, nine hundred four thousand, two hundred ninety-six".