25945201 has 2 divisors, whose sum is σ = 25945202. Its totient is φ = 25945200.

The previous prime is 25945187. The next prime is 25945207. The reversal of 25945201 is 10254952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22316176 + 3629025 = 4724^2 + 1905^2 .

It is a cyclic number.

It is not a de Polignac number, because 25945201 - 2⁹ = 25944689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25945201.

It is not a weakly prime, because it can be changed into another prime (25945207) 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, 12972600 + 12972601.

It is an arithmetic number, because the mean of its divisors is an integer number (12972601).

Almost surely, 2^25945201 is an apocalyptic number.

It is an amenable number.

25945201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25945201 is an equidigital number, since it uses as much as digits as its factorization.

25945201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25945201 is about 5093.6431951993. The cubic root of 25945201 is about 296.0413299058.

The spelling of 25945201 in words is "twenty-five million, nine hundred forty-five thousand, two hundred one".