531443430225 has 72 divisors (see below), whose sum is σ = 986661224640. Its totient is φ = 273117075840.

The previous prime is 531443430223. The next prime is 531443430247. The reversal of 531443430225 is 522034344135.

531443430225 is a `hidden beast` number, since 5 + 314 + 4 + 34 + 302 + 2 + 5 = 666.

It is not a de Polignac number, because 531443430225 - 2¹ = 531443430223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531443430225.

It is not an unprimeable number, because it can be changed into a prime (531443430223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3201114 + ... + 3363036.

It is an arithmetic number, because the mean of its divisors is an integer number (13703628120).

Almost surely, 2^531443430225 is an apocalyptic number.

It is an amenable number.

531443430225 is a deficient number, since it is larger than the sum of its proper divisors (455217794415).

531443430225 is a wasteful number, since it uses less digits than its factorization.

531443430225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162471 (or 162463 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 531443430225 in words is "five hundred thirty-one billion, four hundred forty-three million, four hundred thirty thousand, two hundred twenty-five".