531540552 has 32 divisors (see below), whose sum is σ = 1331654400. Its totient is φ = 176806464.

The previous prime is 531540509. The next prime is 531540553. The reversal of 531540552 is 255045135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (531540553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11623 + ... + 34614.

It is an arithmetic number, because the mean of its divisors is an integer number (41614200).

Almost surely, 2^531540552 is an apocalyptic number.

It is an amenable number.

531540552 is an abundant number, since it is smaller than the sum of its proper divisors (800113848).

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

531540552 is a wasteful number, since it uses less digits than its factorization.

531540552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46725 (or 46721 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 531540552 is about 23055.1632395002. The cubic root of 531540552 is about 810.0505744980.

Adding to 531540552 its reverse (255045135), we get a palindrome (786585687).

The spelling of 531540552 in words is "five hundred thirty-one million, five hundred forty thousand, five hundred fifty-two".