225206417 has 2 divisors, whose sum is σ = 225206418. Its totient is φ = 225206416.

The previous prime is 225206393. The next prime is 225206447. The reversal of 225206417 is 714602522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217975696 + 7230721 = 14764^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 225206417 - 2⁶ = 225206353 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225206417.

It is not a weakly prime, because it can be changed into another prime (225206447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112603208 + 112603209.

It is an arithmetic number, because the mean of its divisors is an integer number (112603209).

Almost surely, 2^225206417 is an apocalyptic number.

It is an amenable number.

225206417 is a deficient number, since it is larger than the sum of its proper divisors (1).

225206417 is an equidigital number, since it uses as much as digits as its factorization.

225206417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 225206417 is about 15006.8789893169. The cubic root of 225206417 is about 608.4061382475.

Adding to 225206417 its reverse (714602522), we get a palindrome (939808939).

The spelling of 225206417 in words is "two hundred twenty-five million, two hundred six thousand, four hundred seventeen".