56432004561 has 8 divisors (see below), whose sum is σ = 83602969760. Its totient is φ = 37621336356.

The previous prime is 56432004523. The next prime is 56432004583. The reversal of 56432004561 is 16540023465.

56432004561 is a `hidden beast` number, since 5 + 64 + 32 + 0 + 0 + 4 + 561 = 666.

It is not a de Polignac number, because 56432004561 - 2¹¹ = 56432002513 is a prime.

It is a super-2 number, since 2×56432004561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56432004521) 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, 1045037095 + ... + 1045037148.

It is an arithmetic number, because the mean of its divisors is an integer number (10450371220).

Almost surely, 2^56432004561 is an apocalyptic number.

It is an amenable number.

56432004561 is a deficient number, since it is larger than the sum of its proper divisors (27170965199).

56432004561 is a wasteful number, since it uses less digits than its factorization.

56432004561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090074252 (or 2090074246 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 56432004561 in words is "fifty-six billion, four hundred thirty-two million, four thousand, five hundred sixty-one".