225895217 has 2 divisors, whose sum is σ = 225895218. Its totient is φ = 225895216.

The previous prime is 225895183. The next prime is 225895273. The reversal of 225895217 is 712598522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200533921 + 25361296 = 14161^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 225895217 - 2¹⁸ = 225633073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225895277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112947608 + 112947609.

It is an arithmetic number, because the mean of its divisors is an integer number (112947609).

Almost surely, 2^225895217 is an apocalyptic number.

It is an amenable number.

225895217 is a deficient number, since it is larger than the sum of its proper divisors (1).

225895217 is an equidigital number, since it uses as much as digits as its factorization.

225895217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 225895217 is about 15029.8109435881. The cubic root of 225895217 is about 609.0257825605.

The spelling of 225895217 in words is "two hundred twenty-five million, eight hundred ninety-five thousand, two hundred seventeen".