56265526661 has 4 divisors (see below), whose sum is σ = 56708562432. Its totient is φ = 55822490892.

The previous prime is 56265526631. The next prime is 56265526699. The reversal of 56265526661 is 16662556265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56265526661 - 2¹⁰ = 56265525637 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 (56265526621) 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, 221517695 + ... + 221517948.

It is an arithmetic number, because the mean of its divisors is an integer number (14177140608).

Almost surely, 2^56265526661 is an apocalyptic number.

It is an amenable number.

56265526661 is a deficient number, since it is larger than the sum of its proper divisors (443035771).

56265526661 is a wasteful number, since it uses less digits than its factorization.

56265526661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443035770.

The product of its digits is 3888000, while the sum is 50.

The spelling of 56265526661 in words is "fifty-six billion, two hundred sixty-five million, five hundred twenty-six thousand, six hundred sixty-one".