225320125 has 16 divisors (see below), whose sum is σ = 297743472. Its totient is φ = 169651200.

The previous prime is 225320099. The next prime is 225320149. The reversal of 225320125 is 521023522.

It can be written as a sum of positive squares in 8 ways, for example, as 92563641 + 132756484 = 9621^2 + 11522^2 .

It is not a de Polignac number, because 225320125 - 2⁵ = 225320093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225320096 and 225320105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50892 + ... + 55141.

It is an arithmetic number, because the mean of its divisors is an integer number (18608967).

Almost surely, 2^225320125 is an apocalyptic number.

225320125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225320125 is a deficient number, since it is larger than the sum of its proper divisors (72423347).

225320125 is a wasteful number, since it uses less digits than its factorization.

225320125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106065 (or 106055 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 225320125 is about 15010.6670404749. The cubic root of 225320125 is about 608.5085169247.

Adding to 225320125 its reverse (521023522), we get a palindrome (746343647).

The spelling of 225320125 in words is "two hundred twenty-five million, three hundred twenty thousand, one hundred twenty-five".