531511152 has 20 divisors (see below), whose sum is σ = 1373070600. Its totient is φ = 177170368.

The previous prime is 531511087. The next prime is 531511153. The reversal of 531511152 is 251115135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531511153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536527 + ... + 5536622.

It is an arithmetic number, because the mean of its divisors is an integer number (68653530).

Almost surely, 2^531511152 is an apocalyptic number.

It is an amenable number.

531511152 is an abundant number, since it is smaller than the sum of its proper divisors (841559448).

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

531511152 is a wasteful number, since it uses less digits than its factorization.

531511152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073160 (or 11073154 counting only the distinct ones).

The product of its digits is 750, while the sum is 24.

The square root of 531511152 is about 23054.5256294724. The cubic root of 531511152 is about 810.0356393403.

Adding to 531511152 its reverse (251115135), we get a palindrome (782626287).

The spelling of 531511152 in words is "five hundred thirty-one million, five hundred eleven thousand, one hundred fifty-two".