25238911 has 2 divisors, whose sum is σ = 25238912. Its totient is φ = 25238910.

The previous prime is 25238881. The next prime is 25238923. The reversal of 25238911 is 11983252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25238911 - 2⁵ = 25238879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25238951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619455 + 12619456.

It is an arithmetic number, because the mean of its divisors is an integer number (12619456).

Almost surely, 2^25238911 is an apocalyptic number.

25238911 is a deficient number, since it is larger than the sum of its proper divisors (1).

25238911 is an equidigital number, since it uses as much as digits as its factorization.

25238911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 25238911 is about 5023.8342926494. The cubic root of 25238911 is about 293.3302623932.

The spelling of 25238911 in words is "twenty-five million, two hundred thirty-eight thousand, nine hundred eleven".