225064171 has 2 divisors, whose sum is σ = 225064172. Its totient is φ = 225064170.

The previous prime is 225064163. The next prime is 225064187. The reversal of 225064171 is 171460522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225064171 - 2³ = 225064163 is a prime.

It is not a weakly prime, because it can be changed into another prime (225064271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112532085 + 112532086.

It is an arithmetic number, because the mean of its divisors is an integer number (112532086).

Almost surely, 2^225064171 is an apocalyptic number.

225064171 is a deficient number, since it is larger than the sum of its proper divisors (1).

225064171 is an equidigital number, since it uses as much as digits as its factorization.

225064171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 225064171 is about 15002.1388808396. The cubic root of 225064171 is about 608.2780164292.

The spelling of 225064171 in words is "two hundred twenty-five million, sixty-four thousand, one hundred seventy-one".