56083407921 has 24 divisors (see below), whose sum is σ = 83889867776. Its totient is φ = 36067187520.

The previous prime is 56083407883. The next prime is 56083407923. The reversal of 56083407921 is 12970438065.

56083407921 is a `hidden beast` number, since 5 + 608 + 34 + 0 + 7 + 9 + 2 + 1 = 666.

It is not a de Polignac number, because 56083407921 - 2⁹ = 56083407409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56083407923) 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, 233785 + ... + 408438.

It is a 1-persistent number, because it is pandigital, but 2⋅56083407921 = 112166815842 is not.

Almost surely, 2^56083407921 is an apocalyptic number.

It is an amenable number.

56083407921 is a deficient number, since it is larger than the sum of its proper divisors (27806459855).

56083407921 is a wasteful number, since it uses less digits than its factorization.

56083407921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642573 (or 642570 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 56083407921 in words is "fifty-six billion, eighty-three million, four hundred seven thousand, nine hundred twenty-one".