225125 has 8 divisors (see below), whose sum is σ = 281112. Its totient is φ = 180000.

The previous prime is 225119. The next prime is 225133. The reversal of 225125 is 521522.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 187489 = 194^2 + 433^2 .

It is not a de Polignac number, because 225125 - 2⁴ = 225109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (35139).

2²²⁵¹²⁵ is an apocalyptic number.

225125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225125 is a deficient number, since it is larger than the sum of its proper divisors (55987).

225125 is an equidigital number, since it uses as much as digits as its factorization.

225125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1806 counting only the distinct ones).

The product of its digits is 200, while the sum is 17.

The square root of 225125 is about 474.4733922993. The cubic root of 225125 is about 60.8332812076.

Adding to 225125 its reverse (521522), we get a palindrome (746647).

The spelling of 225125 in words is "two hundred twenty-five thousand, one hundred twenty-five".