56580115813 has 4 divisors (see below), whose sum is σ = 60932432428. Its totient is φ = 52227799200.

The previous prime is 56580115793. The next prime is 56580115849. The reversal of 56580115813 is 31851108565.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24013221444 + 32566894369 = 154962^2 + 180463^2 .

It is a cyclic number.

It is not a de Polignac number, because 56580115813 - 2²¹ = 56578018661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56580115813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56580115873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176158288 + ... + 2176158313.

It is an arithmetic number, because the mean of its divisors is an integer number (15233108107).

Almost surely, 2^56580115813 is an apocalyptic number.

It is an amenable number.

56580115813 is a deficient number, since it is larger than the sum of its proper divisors (4352316615).

56580115813 is a wasteful number, since it uses less digits than its factorization.

56580115813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352316614.

The product of its (nonzero) digits is 144000, while the sum is 43.

The spelling of 56580115813 in words is "fifty-six billion, five hundred eighty million, one hundred fifteen thousand, eight hundred thirteen".