52565717 has 4 divisors (see below), whose sum is σ = 55657836. Its totient is φ = 49473600.

The previous prime is 52565701. The next prime is 52565743. The reversal of 52565717 is 71756525.

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 31460881 + 21104836 = 5609^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 52565717 - 2⁴ = 52565701 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 (52565017) 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, 1546034 + ... + 1546067.

It is an arithmetic number, because the mean of its divisors is an integer number (13914459).

Almost surely, 2^52565717 is an apocalyptic number.

It is an amenable number.

52565717 is a deficient number, since it is larger than the sum of its proper divisors (3092119).

52565717 is a wasteful number, since it uses less digits than its factorization.

52565717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092118.

The product of its digits is 73500, while the sum is 38.

The square root of 52565717 is about 7250.2218586744. The cubic root of 52565717 is about 374.5997911136.

The spelling of 52565717 in words is "fifty-two million, five hundred sixty-five thousand, seven hundred seventeen".