56579940265 has 4 divisors (see below), whose sum is σ = 67895928324. Its totient is φ = 45263952208.

The previous prime is 56579940251. The next prime is 56579940293. The reversal of 56579940265 is 56204997565.

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 8538314409 + 48041625856 = 92403^2 + 219184^2 .

It is a cyclic number.

It is not a de Polignac number, because 56579940265 - 2⁵ = 56579940233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5657994022 + ... + 5657994031.

It is an arithmetic number, because the mean of its divisors is an integer number (16973982081).

Almost surely, 2^56579940265 is an apocalyptic number.

It is an amenable number.

56579940265 is a deficient number, since it is larger than the sum of its proper divisors (11315988059).

56579940265 is a wasteful number, since it uses less digits than its factorization.

56579940265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315988058.

The product of its (nonzero) digits is 20412000, while the sum is 58.

The spelling of 56579940265 in words is "fifty-six billion, five hundred seventy-nine million, nine hundred forty thousand, two hundred sixty-five".