11552500565 has 32 divisors (see below), whose sum is σ = 14425133184. Its totient is φ = 8874489600.

The previous prime is 11552500541. The next prime is 11552500627. The reversal of 11552500565 is 56500525511.

It is a happy number.

It is not a de Polignac number, because 11552500565 - 2²⁸ = 11284065109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6076115 + ... + 6078015.

It is an arithmetic number, because the mean of its divisors is an integer number (450785412).

Almost surely, 2^11552500565 is an apocalyptic number.

It is an amenable number.

11552500565 is a deficient number, since it is larger than the sum of its proper divisors (2872632619).

11552500565 is a wasteful number, since it uses less digits than its factorization.

11552500565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 11552500565 in words is "eleven billion, five hundred fifty-two million, five hundred thousand, five hundred sixty-five".