52131564531 has 6 divisors (see below), whose sum is σ = 75301148780. Its totient is φ = 34754376348.

The previous prime is 52131564521. The next prime is 52131564571. The reversal of 52131564531 is 13546513125.

52131564531 is a `hidden beast` number, since 5 + 2 + 1 + 3 + 1 + 5 + 645 + 3 + 1 = 666.

It is not a de Polignac number, because 52131564531 - 2¹⁰ = 52131563507 is a prime.

It is a super-2 number, since 2×52131564531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52131564521) 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 5 ways as a sum of consecutive naturals, for example, 2896198021 + ... + 2896198038.

Almost surely, 2^52131564531 is an apocalyptic number.

52131564531 is a deficient number, since it is larger than the sum of its proper divisors (23169584249).

52131564531 is a wasteful number, since it uses less digits than its factorization.

52131564531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792396065 (or 5792396062 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 52131564531 in words is "fifty-two billion, one hundred thirty-one million, five hundred sixty-four thousand, five hundred thirty-one".