225425 has 12 divisors (see below), whose sum is σ = 285696. Its totient is φ = 176400.

The previous prime is 225383. The next prime is 225427. The reversal of 225425 is 524522.

It is not a de Polignac number, because 225425 - 2¹⁰ = 224401 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 225397 and 225406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225425.

It is not an unprimeable number, because it can be changed into a prime (225427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1712 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (23808).

2²²⁵⁴²⁵ is an apocalyptic number.

225425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225425 is a deficient number, since it is larger than the sum of its proper divisors (60271).

225425 is a wasteful number, since it uses less digits than its factorization.

225425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 203 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 225425 is about 474.7894270095. The cubic root of 225425 is about 60.8602912150.

Adding to 225425 its reverse (524522), we get a palindrome (749947).

The spelling of 225425 in words is "two hundred twenty-five thousand, four hundred twenty-five".