52565913 has 24 divisors (see below), whose sum is σ = 81038880. Its totient is φ = 32736960.

The previous prime is 52565911. The next prime is 52565917. The reversal of 52565913 is 31956525.

52565913 is a `hidden beast` number, since 5 + 2 + 565 + 91 + 3 = 666.

It is not a de Polignac number, because 52565913 - 2¹ = 52565911 is a prime.

52565913 is a modest number, since divided by 5913 gives 5256 as remainder.

It is not an unprimeable number, because it can be changed into a prime (52565911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10378 + ... + 14588.

It is an arithmetic number, because the mean of its divisors is an integer number (3376620).

Almost surely, 2^52565913 is an apocalyptic number.

It is an amenable number.

52565913 is a deficient number, since it is larger than the sum of its proper divisors (28472967).

52565913 is a wasteful number, since it uses less digits than its factorization.

52565913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4306 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 52565913 is about 7250.2353754895. The cubic root of 52565913 is about 374.6002566989.

The spelling of 52565913 in words is "fifty-two million, five hundred sixty-five thousand, nine hundred thirteen".