25000841 has 2 divisors, whose sum is σ = 25000842. Its totient is φ = 25000840.

The previous prime is 25000823. The next prime is 25000853. The reversal of 25000841 is 14800052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 841 = 5000^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 25000841 - 2¹⁸ = 24738697 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25000861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500420 + 12500421.

It is an arithmetic number, because the mean of its divisors is an integer number (12500421).

Almost surely, 2^25000841 is an apocalyptic number.

It is an amenable number.

25000841 is a deficient number, since it is larger than the sum of its proper divisors (1).

25000841 is an equidigital number, since it uses as much as digits as its factorization.

25000841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 25000841 is about 5000.0840992927. The cubic root of 25000841 is about 292.4050525831.

Adding to 25000841 its reverse (14800052), we get a palindrome (39800893).

The spelling of 25000841 in words is "twenty-five million, eight hundred forty-one", and thus it is an aban number.