531523524 has 48 divisors (see below), whose sum is σ = 1429964928. Its totient is φ = 150517248.

The previous prime is 531523519. The next prime is 531523541. The reversal of 531523524 is 425325135.

It is a junction number, because it is equal to n+sod(n) for n = 531523491 and 531523500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18507 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (29790936).

Almost surely, 2^531523524 is an apocalyptic number.

It is an amenable number.

531523524 is an abundant number, since it is smaller than the sum of its proper divisors (898441404).

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

531523524 is a wasteful number, since it uses less digits than its factorization.

531523524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56124 (or 56122 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 531523524 is about 23054.7939483310. The cubic root of 531523524 is about 810.0419243656.

Adding to 531523524 its reverse (425325135), we get a palindrome (956848659).

The spelling of 531523524 in words is "five hundred thirty-one million, five hundred twenty-three thousand, five hundred twenty-four".