531320532 has 24 divisors (see below), whose sum is σ = 1279740672. Its totient is φ = 171393600.

The previous prime is 531320521. The next prime is 531320549. The reversal of 531320532 is 235023135.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713769 + ... + 714512.

It is an arithmetic number, because the mean of its divisors is an integer number (53322528).

Almost surely, 2^531320532 is an apocalyptic number.

It is an amenable number.

531320532 is an abundant number, since it is smaller than the sum of its proper divisors (748420140).

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

531320532 is a wasteful number, since it uses less digits than its factorization.

531320532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428319 (or 1428317 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 531320532 is about 23050.3911463558. The cubic root of 531320532 is about 809.9387912901.

Adding to 531320532 its reverse (235023135), we get a palindrome (766343667).

The spelling of 531320532 in words is "five hundred thirty-one million, three hundred twenty thousand, five hundred thirty-two".