531232 has 24 divisors (see below), whose sum is σ = 1127196. Its totient is φ = 244992.

The previous prime is 531229. The next prime is 531239. The reversal of 531232 is 232135.

It can be written as a sum of positive squares in 2 ways, for example, as 524176 + 7056 = 724^2 + 84^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223 + ... + 1054.

2⁵³¹²³² is an apocalyptic number.

531232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

531232 is an abundant number, since it is smaller than the sum of its proper divisors (595964).

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

531232 is a wasteful number, since it uses less digits than its factorization.

531232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1292 counting only the distinct ones).

The product of its digits is 180, while the sum is 16.

The square root of 531232 is about 728.8566388529. The cubic root of 531232 is about 80.9893803077.

Adding to 531232 its reverse (232135), we get a palindrome (763367).

The spelling of 531232 in words is "five hundred thirty-one thousand, two hundred thirty-two".