320254542225 has 36 divisors (see below), whose sum is σ = 576927212316. Its totient is φ = 169815104640.

The previous prime is 320254542187. The next prime is 320254542287. The reversal of 320254542225 is 522245452023.

320254542225 is a `hidden beast` number, since 3 + 202 + 5 + 4 + 5 + 422 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 603390096 + 319651152129 = 24564^2 + 565377^2 .

It is not a de Polignac number, because 320254542225 - 2⁸ = 320254541969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320254542225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4074814 + ... + 4152663.

Almost surely, 2^320254542225 is an apocalyptic number.

It is an amenable number.

320254542225 is a deficient number, since it is larger than the sum of its proper divisors (256672670091).

320254542225 is a wasteful number, since it uses less digits than its factorization.

320254542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8227666 (or 8227658 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 320254542225 its reverse (522245452023), we get a palindrome (842499994248).

The spelling of 320254542225 in words is "three hundred twenty billion, two hundred fifty-four million, five hundred forty-two thousand, two hundred twenty-five".