52639507131 has 4 divisors (see below), whose sum is σ = 70186009512. Its totient is φ = 35093004752.

The previous prime is 52639507121. The next prime is 52639507133. The reversal of 52639507131 is 13170593625.

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 52639507131 - 2²⁵ = 52605952699 is a prime.

It is a super-2 number, since 2×52639507131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52639507133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8773251186 + ... + 8773251191.

It is an arithmetic number, because the mean of its divisors is an integer number (17546502378).

Almost surely, 2^52639507131 is an apocalyptic number.

52639507131 is a deficient number, since it is larger than the sum of its proper divisors (17546502381).

52639507131 is a wasteful number, since it uses less digits than its factorization.

52639507131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17546502380.

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 52639507131 in words is "fifty-two billion, six hundred thirty-nine million, five hundred seven thousand, one hundred thirty-one".