531320521224 has 16 divisors (see below), whose sum is σ = 1328301303120. Its totient is φ = 177106840400.

The previous prime is 531320521201. The next prime is 531320521279. The reversal of 531320521224 is 422125023135.

It is a junction number, because it is equal to n+sod(n) for n = 531320521191 and 531320521200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11069177502 + ... + 11069177549.

It is an arithmetic number, because the mean of its divisors is an integer number (83018831445).

Almost surely, 2^531320521224 is an apocalyptic number.

It is an amenable number.

531320521224 is an abundant number, since it is smaller than the sum of its proper divisors (796980781896).

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

531320521224 is a wasteful number, since it uses less digits than its factorization.

531320521224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22138355060 (or 22138355056 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 531320521224 its reverse (422125023135), we get a palindrome (953445544359).

The spelling of 531320521224 in words is "five hundred thirty-one billion, three hundred twenty million, five hundred twenty-one thousand, two hundred twenty-four".