531325332405 has 80 divisors (see below), whose sum is σ = 1088911718400. Its totient is φ = 242802862848.

The previous prime is 531325332371. The next prime is 531325332413. The reversal of 531325332405 is 504233523135.

531325332405 is a `hidden beast` number, since 5 + 3 + 1 + 325 + 3 + 324 + 0 + 5 = 666.

It is not a de Polignac number, because 531325332405 - 2¹¹ = 531325330357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531325332405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8066796 + ... + 8132394.

It is an arithmetic number, because the mean of its divisors is an integer number (13611396480).

Almost surely, 2^531325332405 is an apocalyptic number.

It is an amenable number.

531325332405 is an abundant number, since it is smaller than the sum of its proper divisors (557586385995).

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

531325332405 is a wasteful number, since it uses less digits than its factorization.

531325332405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68480 (or 68471 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 531325332405 in words is "five hundred thirty-one billion, three hundred twenty-five million, three hundred thirty-two thousand, four hundred five".