531292440532 has 54 divisors (see below), whose sum is σ = 1141479963162. Its totient is φ = 215712691488.

The previous prime is 531292440509. The next prime is 531292440533. The reversal of 531292440532 is 235044292135.

It can be written as a sum of positive squares in only one way, i.e., 485326795716 + 45965644816 = 696654^2 + 214396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531292440533) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3683643 + ... + 3825154.

Almost surely, 2^531292440532 is an apocalyptic number.

It is an amenable number.

531292440532 is an abundant number, since it is smaller than the sum of its proper divisors (610187522630).

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

531292440532 is a wasteful number, since it uses less digits than its factorization.

531292440532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508853 (or 7508825 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 531292440532 in words is "five hundred thirty-one billion, two hundred ninety-two million, four hundred forty thousand, five hundred thirty-two".