56424660521 has 8 divisors (see below), whose sum is σ = 59073598080. Its totient is φ = 53822606992.

The previous prime is 56424660517. The next prime is 56424660529. The reversal of 56424660521 is 12506642465.

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 56424660521 - 2² = 56424660517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56424660529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11718545 + ... + 11723358.

It is an arithmetic number, because the mean of its divisors is an integer number (7384199760).

Almost surely, 2^56424660521 is an apocalyptic number.

It is an amenable number.

56424660521 is a deficient number, since it is larger than the sum of its proper divisors (2648937559).

56424660521 is a wasteful number, since it uses less digits than its factorization.

56424660521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23442015.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 56424660521 in words is "fifty-six billion, four hundred twenty-four million, six hundred sixty thousand, five hundred twenty-one".