531253530 has 48 divisors (see below), whose sum is σ = 1385321184. Its totient is φ = 141251040.

The previous prime is 531253529. The next prime is 531253579. The reversal of 531253530 is 35352135.

531253530 is a `hidden beast` number, since 5 + 3 + 125 + 3 + 530 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531253494 and 531253503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22725 + ... + 39735.

It is an arithmetic number, because the mean of its divisors is an integer number (28860858).

Almost surely, 2^531253530 is an apocalyptic number.

531253530 is an abundant number, since it is smaller than the sum of its proper divisors (854067654).

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

531253530 is a wasteful number, since it uses less digits than its factorization.

531253530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17371 (or 17368 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 531253530 is about 23048.9377195566. The cubic root of 531253530 is about 809.9047441710.

The spelling of 531253530 in words is "five hundred thirty-one million, two hundred fifty-three thousand, five hundred thirty".