225062171 has 2 divisors, whose sum is σ = 225062172. Its totient is φ = 225062170.

The previous prime is 225062147. The next prime is 225062183. The reversal of 225062171 is 171260522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225062171 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225062171.

It is not a weakly prime, because it can be changed into another prime (225064171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112531085 + 112531086.

It is an arithmetic number, because the mean of its divisors is an integer number (112531086).

Almost surely, 2^225062171 is an apocalyptic number.

225062171 is a deficient number, since it is larger than the sum of its proper divisors (1).

225062171 is an equidigital number, since it uses as much as digits as its factorization.

225062171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 225062171 is about 15002.0722235297. The cubic root of 225062171 is about 608.2762146325.

The spelling of 225062171 in words is "two hundred twenty-five million, sixty-two thousand, one hundred seventy-one".