56607238721 has 8 divisors (see below), whose sum is σ = 63882777600. Its totient is φ = 49686604240.

The previous prime is 56607238717. The next prime is 56607238789. The reversal of 56607238721 is 12783270665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56607238721 - 2² = 56607238717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56607238711) 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, 88725761 + ... + 88726398.

It is an arithmetic number, because the mean of its divisors is an integer number (7985347200).

Almost surely, 2^56607238721 is an apocalyptic number.

It is an amenable number.

56607238721 is a deficient number, since it is larger than the sum of its proper divisors (7275538879).

56607238721 is a wasteful number, since it uses less digits than its factorization.

56607238721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177452199.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 56607238721 in words is "fifty-six billion, six hundred seven million, two hundred thirty-eight thousand, seven hundred twenty-one".