531579005269 has 12 divisors (see below), whose sum is σ = 575639932932. Its totient is φ = 490667174400.

The previous prime is 531579005263. The next prime is 531579005273. The reversal of 531579005269 is 962500975135.

It can be written as a sum of positive squares in 6 ways, for example, as 120608260369 + 410970744900 = 347287^2 + 641070^2 .

It is not a de Polignac number, because 531579005269 - 2³ = 531579005261 is a prime.

It is a super-2 number, since 2×531579005269² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531579005261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4973349 + ... + 5079109.

It is an arithmetic number, because the mean of its divisors is an integer number (47969994411).

Almost surely, 2^531579005269 is an apocalyptic number.

It is an amenable number.

531579005269 is a deficient number, since it is larger than the sum of its proper divisors (44060927663).

531579005269 is a wasteful number, since it uses less digits than its factorization.

531579005269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135528 (or 135515 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 52.

The spelling of 531579005269 in words is "five hundred thirty-one billion, five hundred seventy-nine million, five thousand, two hundred sixty-nine".