56500478909 has 8 divisors (see below), whose sum is σ = 64579088640. Its totient is φ = 48423647376.

The previous prime is 56500478897. The next prime is 56500478939. The reversal of 56500478909 is 90987400565.

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 56500478909 - 2⁴ = 56500478893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56500478939) 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, 375749 + ... + 504170.

It is an arithmetic number, because the mean of its divisors is an integer number (8072386080).

Almost surely, 2^56500478909 is an apocalyptic number.

It is an amenable number.

56500478909 is a deficient number, since it is larger than the sum of its proper divisors (8078609731).

56500478909 is an equidigital number, since it uses as much as digits as its factorization.

56500478909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889099.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 56500478909 in words is "fifty-six billion, five hundred million, four hundred seventy-eight thousand, nine hundred nine".