25806059 has 2 divisors, whose sum is σ = 25806060. Its totient is φ = 25806058.

The previous prime is 25806013. The next prime is 25806073. The reversal of 25806059 is 95060852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25806059 is a prime.

It is a super-2 number, since 2×25806059² = 1331905362222962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25806089) 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, 12903029 + 12903030.

It is an arithmetic number, because the mean of its divisors is an integer number (12903030).

Almost surely, 2^25806059 is an apocalyptic number.

25806059 is a deficient number, since it is larger than the sum of its proper divisors (1).

25806059 is an equidigital number, since it uses as much as digits as its factorization.

25806059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 25806059 is about 5079.9664368970. The cubic root of 25806059 is about 295.5111658501.

The spelling of 25806059 in words is "twenty-five million, eight hundred six thousand, fifty-nine".