25872241 has 2 divisors, whose sum is σ = 25872242. Its totient is φ = 25872240.

The previous prime is 25872239. The next prime is 25872247. The reversal of 25872241 is 14227852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19395216 + 6477025 = 4404^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 25872241 - 2¹ = 25872239 is a prime.

Together with 25872239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25872247) 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, 12936120 + 12936121.

It is an arithmetic number, because the mean of its divisors is an integer number (12936121).

Almost surely, 2^25872241 is an apocalyptic number.

It is an amenable number.

25872241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25872241 is an equidigital number, since it uses as much as digits as its factorization.

25872241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 31.

The square root of 25872241 is about 5086.4762852096. The cubic root of 25872241 is about 295.7635720098.

The spelling of 25872241 in words is "twenty-five million, eight hundred seventy-two thousand, two hundred forty-one".