225680017 has 2 divisors, whose sum is σ = 225680018. Its totient is φ = 225680016.

The previous prime is 225680009. The next prime is 225680029. The reversal of 225680017 is 710086522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177182721 + 48497296 = 13311^2 + 6964^2 .

It is a cyclic number.

It is not a de Polignac number, because 225680017 - 2³ = 225680009 is a prime.

It is not a weakly prime, because it can be changed into another prime (225600017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112840008 + 112840009.

It is an arithmetic number, because the mean of its divisors is an integer number (112840009).

Almost surely, 2^225680017 is an apocalyptic number.

It is an amenable number.

225680017 is a deficient number, since it is larger than the sum of its proper divisors (1).

225680017 is an equidigital number, since it uses as much as digits as its factorization.

225680017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 225680017 is about 15022.6501323834. The cubic root of 225680017 is about 608.8323241491.

The spelling of 225680017 in words is "two hundred twenty-five million, six hundred eighty thousand, seventeen".