56605602815 has 4 divisors (see below), whose sum is σ = 67926723384. Its totient is φ = 45284482248.

The previous prime is 56605602793. The next prime is 56605602817. The reversal of 56605602815 is 51820650665.

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

It is a cyclic number.

It is not a de Polignac number, because 56605602815 - 2⁶ = 56605602751 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 (56605602817) 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, 5660560277 + ... + 5660560286.

It is an arithmetic number, because the mean of its divisors is an integer number (16981680846).

Almost surely, 2^56605602815 is an apocalyptic number.

56605602815 is a deficient number, since it is larger than the sum of its proper divisors (11321120569).

56605602815 is a wasteful number, since it uses less digits than its factorization.

56605602815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321120568.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 56605602815 in words is "fifty-six billion, six hundred five million, six hundred two thousand, eight hundred fifteen".