25838251 has 2 divisors, whose sum is σ = 25838252. Its totient is φ = 25838250.

The previous prime is 25838243. The next prime is 25838273. The reversal of 25838251 is 15283852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25838251 - 2³ = 25838243 is a prime.

It is not a weakly prime, because it can be changed into another prime (25838201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919125 + 12919126.

It is an arithmetic number, because the mean of its divisors is an integer number (12919126).

Almost surely, 2^25838251 is an apocalyptic number.

25838251 is a deficient number, since it is larger than the sum of its proper divisors (1).

25838251 is an equidigital number, since it uses as much as digits as its factorization.

25838251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The square root of 25838251 is about 5083.1339742328. The cubic root of 25838251 is about 295.6339941422.

The spelling of 25838251 in words is "twenty-five million, eight hundred thirty-eight thousand, two hundred fifty-one".