56387936320 has 56 divisors (see below), whose sum is σ = 137548775448. Its totient is φ = 22005043200.

The previous prime is 56387936309. The next prime is 56387936321. The reversal of 56387936320 is 2363978365.

It can be written as a sum of positive squares in 4 ways, for example, as 3023240256 + 53364696064 = 54984^2 + 231008^2 .

It is not an unprimeable number, because it can be changed into a prime (56387936321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135811 + ... + 2162050.

It is an arithmetic number, because the mean of its divisors is an integer number (2456228133).

Almost surely, 2^56387936320 is an apocalyptic number.

It is an amenable number.

56387936320 is an abundant number, since it is smaller than the sum of its proper divisors (81160839128).

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

56387936320 is a wasteful number, since it uses less digits than its factorization.

56387936320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297919 (or 4297909 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 56387936320 in words is "fifty-six billion, three hundred eighty-seven million, nine hundred thirty-six thousand, three hundred twenty".