25216159 has 2 divisors, whose sum is σ = 25216160. Its totient is φ = 25216158.

The previous prime is 25216127. The next prime is 25216183. The reversal of 25216159 is 95161252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25216159 - 2⁵ = 25216127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25216159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25216859) 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, 12608079 + 12608080.

It is an arithmetic number, because the mean of its divisors is an integer number (12608080).

Almost surely, 2^25216159 is an apocalyptic number.

25216159 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216159 is an equidigital number, since it uses as much as digits as its factorization.

25216159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 25216159 is about 5021.5693762010. The cubic root of 25216159 is about 293.2420935528.

The spelling of 25216159 in words is "twenty-five million, two hundred sixteen thousand, one hundred fifty-nine".