56832928281 has 24 divisors (see below), whose sum is σ = 82826839680. Its totient is φ = 37550973600.

The previous prime is 56832928279. The next prime is 56832928291. The reversal of 56832928281 is 18282923865.

It is a happy number.

56832928281 is a `hidden beast` number, since 568 + 32 + 9 + 28 + 28 + 1 = 666.

It is not a de Polignac number, because 56832928281 - 2¹ = 56832928279 is a prime.

It is a super-2 number, since 2×56832928281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56832928211) 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 23 ways as a sum of consecutive naturals, for example, 391251 + ... + 516471.

It is an arithmetic number, because the mean of its divisors is an integer number (3451118320).

Almost surely, 2^56832928281 is an apocalyptic number.

It is an amenable number.

56832928281 is a deficient number, since it is larger than the sum of its proper divisors (25993911399).

56832928281 is a wasteful number, since it uses less digits than its factorization.

56832928281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125677 (or 125674 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 56832928281 in words is "fifty-six billion, eight hundred thirty-two million, nine hundred twenty-eight thousand, two hundred eighty-one".