225321531325 has 24 divisors (see below), whose sum is σ = 322727915520. Its totient is φ = 154230777600.

The previous prime is 225321531319. The next prime is 225321531353. The reversal of 225321531325 is 523135123522.

It is not a de Polignac number, because 225321531325 - 2¹⁵ = 225321498557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24093885 + ... + 24103234.

It is an arithmetic number, because the mean of its divisors is an integer number (13446996480).

Almost surely, 2^225321531325 is an apocalyptic number.

225321531325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225321531325 is a deficient number, since it is larger than the sum of its proper divisors (97406384195).

225321531325 is a wasteful number, since it uses less digits than its factorization.

225321531325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48197157 (or 48197152 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

Adding to 225321531325 its reverse (523135123522), we get a palindrome (748456654847).

The spelling of 225321531325 in words is "two hundred twenty-five billion, three hundred twenty-one million, five hundred thirty-one thousand, three hundred twenty-five".