52565613 has 8 divisors (see below), whose sum is σ = 70162176. Its totient is φ = 35006400.

The previous prime is 52565549. The next prime is 52565627. The reversal of 52565613 is 31656525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52565613 - 2⁶ = 52565549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52565663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5868 + ... + 11813.

It is an arithmetic number, because the mean of its divisors is an integer number (8770272).

Almost surely, 2^52565613 is an apocalyptic number.

It is an amenable number.

52565613 is a deficient number, since it is larger than the sum of its proper divisors (17596563).

52565613 is a wasteful number, since it uses less digits than its factorization.

52565613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18675.

The product of its digits is 27000, while the sum is 33.

The square root of 52565613 is about 7250.2146864765. The cubic root of 52565613 is about 374.5995440679.

The spelling of 52565613 in words is "fifty-two million, five hundred sixty-five thousand, six hundred thirteen".