25872859 has 2 divisors, whose sum is σ = 25872860. Its totient is φ = 25872858.

The previous prime is 25872841. The next prime is 25872863. The reversal of 25872859 is 95827852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25872859 - 2⁹ = 25872347 is a prime.

It is not a weakly prime, because it can be changed into another prime (25876859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12936429 + 12936430.

It is an arithmetic number, because the mean of its divisors is an integer number (12936430).

Almost surely, 2^25872859 is an apocalyptic number.

25872859 is a deficient number, since it is larger than the sum of its proper divisors (1).

25872859 is an equidigital number, since it uses as much as digits as its factorization.

25872859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 46.

The square root of 25872859 is about 5086.5370341717. The cubic root of 25872859 is about 295.7659269202.

The spelling of 25872859 in words is "twenty-five million, eight hundred seventy-two thousand, eight hundred fifty-nine".