531251532 has 108 divisors (see below), whose sum is σ = 1567926360. Its totient is φ = 151224192.

The previous prime is 531251531. The next prime is 531251563. The reversal of 531251532 is 235152135.

It is a happy number.

531251532 is a `hidden beast` number, since 5 + 3 + 125 + 1 + 532 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531251496 and 531251505.

It is not an unprimeable number, because it can be changed into a prime (531251531) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 805819 + ... + 806477.

Almost surely, 2^531251532 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 531251532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783963180).

531251532 is an abundant number, since it is smaller than the sum of its proper divisors (1036674828).

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

531251532 is a wasteful number, since it uses less digits than its factorization.

531251532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1128 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 531251532 is about 23048.8943769544. The cubic root of 531251532 is about 809.9037288418.

The spelling of 531251532 in words is "five hundred thirty-one million, two hundred fifty-one thousand, five hundred thirty-two".