56005616009 has 8 divisors (see below), whose sum is σ = 66789306240. Its totient is φ = 45917647776.

The previous prime is 56005615979. The next prime is 56005616021. The reversal of 56005616009 is 90061650065.

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

It is not a de Polignac number, because 56005616009 - 2²⁴ = 55988838793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56005616059) 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, 173930324 + ... + 173930645.

It is an arithmetic number, because the mean of its divisors is an integer number (8348663280).

Almost surely, 2^56005616009 is an apocalyptic number.

It is an amenable number.

56005616009 is a deficient number, since it is larger than the sum of its proper divisors (10783690231).

56005616009 is a wasteful number, since it uses less digits than its factorization.

56005616009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347860999.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 56005616009 in words is "fifty-six billion, five million, six hundred sixteen thousand, nine".