56515580805 has 8 divisors (see below), whose sum is σ = 90424929312. Its totient is φ = 30141643088.

The previous prime is 56515580767. The next prime is 56515580809. The reversal of 56515580805 is 50808551565.

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 56515580805 - 2¹⁷ = 56515449733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56515580809) 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, 1883852679 + ... + 1883852708.

It is an arithmetic number, because the mean of its divisors is an integer number (11303116164).

Almost surely, 2^56515580805 is an apocalyptic number.

It is an amenable number.

56515580805 is a deficient number, since it is larger than the sum of its proper divisors (33909348507).

56515580805 is a wasteful number, since it uses less digits than its factorization.

56515580805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767705395.

The product of its (nonzero) digits is 1200000, while the sum is 48.

The spelling of 56515580805 in words is "fifty-six billion, five hundred fifteen million, five hundred eighty thousand, eight hundred five".