225105325 has 12 divisors (see below), whose sum is σ = 285071040. Its totient is φ = 176251760.

The previous prime is 225105323. The next prime is 225105359. The reversal of 225105325 is 523501522.

It is a happy number.

It is not a de Polignac number, because 225105325 - 2¹ = 225105323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 225105325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225105323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94615 + ... + 96964.

It is an arithmetic number, because the mean of its divisors is an integer number (23755920).

Almost surely, 2^225105325 is an apocalyptic number.

225105325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225105325 is a deficient number, since it is larger than the sum of its proper divisors (59965715).

225105325 is a wasteful number, since it uses less digits than its factorization.

225105325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191636 (or 191631 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 225105325 is about 15003.5104225644. The cubic root of 225105325 is about 608.3150896303.

Adding to 225105325 its reverse (523501522), we get a palindrome (748606847).

The spelling of 225105325 in words is "two hundred twenty-five million, one hundred five thousand, three hundred twenty-five".