531115332 has 96 divisors (see below), whose sum is σ = 1394547840. Its totient is φ = 155950080.

The previous prime is 531115331. The next prime is 531115337. The reversal of 531115332 is 233511135.

It is not an unprimeable number, because it can be changed into a prime (531115331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622218 + ... + 623070.

It is an arithmetic number, because the mean of its divisors is an integer number (14526540).

Almost surely, 2^531115332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531115332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697273920).

531115332 is an abundant number, since it is smaller than the sum of its proper divisors (863432508).

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

531115332 is a wasteful number, since it uses less digits than its factorization.

531115332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1011 counting only the distinct ones).

The product of its digits is 1350, while the sum is 24.

The square root of 531115332 is about 23045.9395989836. The cubic root of 531115332 is about 809.8345097059.

Adding to 531115332 its reverse (233511135), we get a palindrome (764626467).

The spelling of 531115332 in words is "five hundred thirty-one million, one hundred fifteen thousand, three hundred thirty-two".