531162312552 has 48 divisors (see below), whose sum is σ = 1438654029540. Its totient is φ = 177043097088.

The previous prime is 531162312533. The next prime is 531162312581. The reversal of 531162312552 is 255213261135.

531162312552 is a `hidden beast` number, since 5 + 3 + 1 + 1 + 623 + 1 + 25 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 527677299396 + 3485013156 = 726414^2 + 59034^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 980928 + ... + 1422864.

Almost surely, 2^531162312552 is an apocalyptic number.

It is an amenable number.

531162312552 is an abundant number, since it is smaller than the sum of its proper divisors (907491716988).

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

531162312552 is a wasteful number, since it uses less digits than its factorization.

531162312552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458642 (or 458635 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 531162312552 its reverse (255213261135), we get a palindrome (786375573687).

The spelling of 531162312552 in words is "five hundred thirty-one billion, one hundred sixty-two million, three hundred twelve thousand, five hundred fifty-two".