531364216 has 32 divisors (see below), whose sum is σ = 1075485600. Its totient is φ = 245365120.

The previous prime is 531364199. The next prime is 531364217. The reversal of 531364216 is 612463135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531364217) 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, 44455 + ... + 55126.

It is an arithmetic number, because the mean of its divisors is an integer number (33608925).

Almost surely, 2^531364216 is an apocalyptic number.

It is an amenable number.

531364216 is an abundant number, since it is smaller than the sum of its proper divisors (544121384).

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

531364216 is a wasteful number, since it uses less digits than its factorization.

531364216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99639 (or 99635 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 531364216 is about 23051.3387029908. The cubic root of 531364216 is about 809.9609878076.

The spelling of 531364216 in words is "five hundred thirty-one million, three hundred sixty-four thousand, two hundred sixteen".