25525859 has 2 divisors, whose sum is σ = 25525860. Its totient is φ = 25525858.

The previous prime is 25525847. The next prime is 25525879. The reversal of 25525859 is 95852552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25525859 - 2²⁰ = 24477283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25525879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762929 + 12762930.

It is an arithmetic number, because the mean of its divisors is an integer number (12762930).

Almost surely, 2^25525859 is an apocalyptic number.

25525859 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525859 is an equidigital number, since it uses as much as digits as its factorization.

25525859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 41.

The square root of 25525859 is about 5052.3122429240. The cubic root of 25525859 is about 294.4377262605.

The spelling of 25525859 in words is "twenty-five million, five hundred twenty-five thousand, eight hundred fifty-nine".