225602417 has 2 divisors, whose sum is σ = 225602418. Its totient is φ = 225602416.

The previous prime is 225602329. The next prime is 225602437. The reversal of 225602417 is 714206522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209409841 + 16192576 = 14471^2 + 4024^2 .

It is a cyclic number.

It is not a de Polignac number, because 225602417 - 2⁸ = 225602161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225602417.

It is not a weakly prime, because it can be changed into another prime (225602437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112801208 + 112801209.

It is an arithmetic number, because the mean of its divisors is an integer number (112801209).

Almost surely, 2^225602417 is an apocalyptic number.

It is an amenable number.

225602417 is a deficient number, since it is larger than the sum of its proper divisors (1).

225602417 is an equidigital number, since it uses as much as digits as its factorization.

225602417 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 225602417 is about 15020.0671436582. The cubic root of 225602417 is about 608.7625338843.

Adding to 225602417 its reverse (714206522), we get a palindrome (939808939).

The spelling of 225602417 in words is "two hundred twenty-five million, six hundred two thousand, four hundred seventeen".