52564605665015 has 4 divisors (see below), whose sum is σ = 63077526798024. Its totient is φ = 42051684532008.

The previous prime is 52564605664979. The next prime is 52564605665063. The reversal of 52564605665015 is 51056650646525.

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 52564605665015 - 2⁴⁰ = 51465094037239 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 3 ways as a sum of consecutive naturals, for example, 5256460566497 + ... + 5256460566506.

It is an arithmetic number, because the mean of its divisors is an integer number (15769381699506).

Almost surely, 2^{52564605665015} is an apocalyptic number.

52564605665015 is a deficient number, since it is larger than the sum of its proper divisors (10512921133009).

52564605665015 is a wasteful number, since it uses less digits than its factorization.

52564605665015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512921133008.

The product of its (nonzero) digits is 32400000, while the sum is 56.

The spelling of 52564605665015 in words is "fifty-two trillion, five hundred sixty-four billion, six hundred five million, six hundred sixty-five thousand, fifteen".