25805411 has 2 divisors, whose sum is σ = 25805412. Its totient is φ = 25805410.

The previous prime is 25805407. The next prime is 25805413. The reversal of 25805411 is 11450852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25805411 - 2² = 25805407 is a prime.

Together with 25805413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25805413) 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, 12902705 + 12902706.

It is an arithmetic number, because the mean of its divisors is an integer number (12902706).

Almost surely, 2^25805411 is an apocalyptic number.

25805411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25805411 is an equidigital number, since it uses as much as digits as its factorization.

25805411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 25805411 is about 5079.9026565477. The cubic root of 25805411 is about 295.5086923633.

The spelling of 25805411 in words is "twenty-five million, eight hundred five thousand, four hundred eleven".