56131560280 has 32 divisors (see below), whose sum is σ = 126325508400. Its totient is φ = 22447380096.

The previous prime is 56131560229. The next prime is 56131560281. The reversal of 56131560280 is 8206513165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56131560281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11854 + ... + 335266.

Almost surely, 2^56131560280 is an apocalyptic number.

It is an amenable number.

56131560280 is an abundant number, since it is smaller than the sum of its proper divisors (70193948120).

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

56131560280 is a wasteful number, since it uses less digits than its factorization.

56131560280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327763 (or 327759 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 56131560280 in words is "fifty-six billion, one hundred thirty-one million, five hundred sixty thousand, two hundred eighty".