56587230128 has 160 divisors (see below), whose sum is σ = 133623114240. Its totient is φ = 22870149120.

The previous prime is 56587230109. The next prime is 56587230137. The reversal of 56587230128 is 82103278565.

It is a super-2 number, since 2×56587230128² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7178093 + ... + 7185971.

It is an arithmetic number, because the mean of its divisors is an integer number (835144464).

Almost surely, 2^56587230128 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 56587230128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66811557120).

56587230128 is an abundant number, since it is smaller than the sum of its proper divisors (77035884112).

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

56587230128 is a wasteful number, since it uses less digits than its factorization.

56587230128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027 (or 8021 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 56587230128 in words is "fifty-six billion, five hundred eighty-seven million, two hundred thirty thousand, one hundred twenty-eight".