531656132 has 24 divisors (see below), whose sum is σ = 1109544576. Its totient is φ = 217945728.

The previous prime is 531656123. The next prime is 531656149. The reversal of 531656132 is 231656135.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412133 + ... + 413420.

It is an arithmetic number, because the mean of its divisors is an integer number (46231024).

Almost surely, 2^531656132 is an apocalyptic number.

It is an amenable number.

531656132 is an abundant number, since it is smaller than the sum of its proper divisors (577888444).

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

531656132 is a wasteful number, since it uses less digits than its factorization.

531656132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825587 (or 825585 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 531656132 is about 23057.6697001236. The cubic root of 531656132 is about 810.1092836343.

The spelling of 531656132 in words is "five hundred thirty-one million, six hundred fifty-six thousand, one hundred thirty-two".