531324530424 has 160 divisors (see below), whose sum is σ = 1517036677200. Its totient is φ = 173699665920.

The previous prime is 531324530381. The next prime is 531324530453. The reversal of 531324530424 is 424035423135.

531324530424 is a `hidden beast` number, since 5 + 3 + 1 + 324 + 5 + 304 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9915544 + ... + 9968984.

Almost surely, 2^531324530424 is an apocalyptic number.

531324530424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531324530424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758518338600).

531324530424 is an abundant number, since it is smaller than the sum of its proper divisors (985712146776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531324530424 is a wasteful number, since it uses less digits than its factorization.

531324530424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53755 (or 53742 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 531324530424 its reverse (424035423135), we get a palindrome (955359953559).

The spelling of 531324530424 in words is "five hundred thirty-one billion, three hundred twenty-four million, five hundred thirty thousand, four hundred twenty-four".