52615131 has 4 divisors (see below), whose sum is σ = 70153512. Its totient is φ = 35076752.

The previous prime is 52615127. The next prime is 52615139. The reversal of 52615131 is 13151625.

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 52615131 - 2² = 52615127 is a prime.

It is a super-2 number, since 2×52615131² = 5536704020294322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52615139) 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, 8769186 + ... + 8769191.

It is an arithmetic number, because the mean of its divisors is an integer number (17538378).

Almost surely, 2^52615131 is an apocalyptic number.

52615131 is a deficient number, since it is larger than the sum of its proper divisors (17538381).

52615131 is a wasteful number, since it uses less digits than its factorization.

52615131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17538380.

The product of its digits is 900, while the sum is 24.

The square root of 52615131 is about 7253.6288159789. The cubic root of 52615131 is about 374.7171342411.

Adding to 52615131 its reverse (13151625), we get a palindrome (65766756).

The spelling of 52615131 in words is "fifty-two million, six hundred fifteen thousand, one hundred thirty-one".