25318871 has 2 divisors, whose sum is σ = 25318872. Its totient is φ = 25318870.

The previous prime is 25318861. The next prime is 25318877. The reversal of 25318871 is 17881352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25318871 - 2⁶ = 25318807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25318877) 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, 12659435 + 12659436.

It is an arithmetic number, because the mean of its divisors is an integer number (12659436).

Almost surely, 2^25318871 is an apocalyptic number.

25318871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25318871 is an equidigital number, since it uses as much as digits as its factorization.

25318871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 25318871 is about 5031.7860646097. The cubic root of 25318871 is about 293.6397047217.

The spelling of 25318871 in words is "twenty-five million, three hundred eighteen thousand, eight hundred seventy-one".