25985159 has 2 divisors, whose sum is σ = 25985160. Its totient is φ = 25985158.

The previous prime is 25985111. The next prime is 25985171. The reversal of 25985159 is 95158952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25985159 - 2¹⁶ = 25919623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25988159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12992579 + 12992580.

It is an arithmetic number, because the mean of its divisors is an integer number (12992580).

Almost surely, 2^25985159 is an apocalyptic number.

25985159 is a deficient number, since it is larger than the sum of its proper divisors (1).

25985159 is an equidigital number, since it uses as much as digits as its factorization.

25985159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 44.

The square root of 25985159 is about 5097.5640260815. The cubic root of 25985159 is about 296.1932289276.

The spelling of 25985159 in words is "twenty-five million, nine hundred eighty-five thousand, one hundred fifty-nine".