225320345256 has 64 divisors (see below), whose sum is σ = 572141419200. Its totient is φ = 73932092928.

The previous prime is 225320345249. The next prime is 225320345281. The reversal of 225320345256 is 652543023522.

225320345256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 765435 + ... + 1018101.

It is an arithmetic number, because the mean of its divisors is an integer number (8939709675).

Almost surely, 2^225320345256 is an apocalyptic number.

It is an amenable number.

225320345256 is an abundant number, since it is smaller than the sum of its proper divisors (346821073944).

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

225320345256 is a wasteful number, since it uses less digits than its factorization.

225320345256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253258 (or 253254 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 225320345256 its reverse (652543023522), we get a palindrome (877863368778).

The spelling of 225320345256 in words is "two hundred twenty-five billion, three hundred twenty million, three hundred forty-five thousand, two hundred fifty-six".