25214171 has 2 divisors, whose sum is σ = 25214172. Its totient is φ = 25214170.

The previous prime is 25214153. The next prime is 25214201. The reversal of 25214171 is 17141252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25214171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25214071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12607085 + 12607086.

It is an arithmetic number, because the mean of its divisors is an integer number (12607086).

Almost surely, 2^25214171 is an apocalyptic number.

25214171 is a deficient number, since it is larger than the sum of its proper divisors (1).

25214171 is an equidigital number, since it uses as much as digits as its factorization.

25214171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 23.

The square root of 25214171 is about 5021.3714262142. The cubic root of 25214171 is about 293.2343871108.

The spelling of 25214171 in words is "twenty-five million, two hundred fourteen thousand, one hundred seventy-one".