56234321920 has 192 divisors, whose sum is σ = 155183333760. Its totient is φ = 19158073344.

The previous prime is 56234321821. The next prime is 56234321929. The reversal of 56234321920 is 2912343265.

It is a self number, because there is not a number n which added to its sum of digits gives 56234321920.

It is not an unprimeable number, because it can be changed into a prime (56234321929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11681434 + ... + 11686246.

It is an arithmetic number, because the mean of its divisors is an integer number (808246530).

Almost surely, 2^56234321920 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 56234321920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77591666880).

56234321920 is an abundant number, since it is smaller than the sum of its proper divisors (98949011840).

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

56234321920 is a wasteful number, since it uses less digits than its factorization.

56234321920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010 (or 4990 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 56234321920 in words is "fifty-six billion, two hundred thirty-four million, three hundred twenty-one thousand, nine hundred twenty".