225097 has 4 divisors (see below), whose sum is σ = 238356. Its totient is φ = 211840.

The previous prime is 225089. The next prime is 225109. The reversal of 225097 is 790522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790522 = 2 ⋅395261.

It can be written as a sum of positive squares in 2 ways, for example, as 207936 + 17161 = 456^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 225097 - 2³ = 225089 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6604 + ... + 6637.

It is an arithmetic number, because the mean of its divisors is an integer number (59589).

2²²⁵⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

225097 is a deficient number, since it is larger than the sum of its proper divisors (13259).

225097 is a wasteful number, since it uses less digits than its factorization.

225097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13258.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 225097 is about 474.4438849854. The cubic root of 225097 is about 60.8307590495.

The spelling of 225097 in words is "two hundred twenty-five thousand, ninety-seven".