531612284 has 12 divisors (see below), whose sum is σ = 1063224624. Its totient is φ = 227833824.

The previous prime is 531612259. The next prime is 531612307. The reversal of 531612284 is 482216135.

531612284 is an admirable number.

It is a super-2 number, since 2×531612284² = 565223240999393312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531612284.

It is a congruent number.

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, 9493049 + ... + 9493104.

It is an arithmetic number, because the mean of its divisors is an integer number (88602052).

Almost surely, 2^531612284 is an apocalyptic number.

It is an amenable number.

531612284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

531612284 is a wasteful number, since it uses less digits than its factorization.

531612284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18986164 (or 18986162 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 531612284 is about 23056.7188472254. The cubic root of 531612284 is about 810.0870119401.

The spelling of 531612284 in words is "five hundred thirty-one million, six hundred twelve thousand, two hundred eighty-four".