25225159 has 4 divisors (see below), whose sum is σ = 25235416. Its totient is φ = 25214904.

The previous prime is 25225153. The next prime is 25225169. The reversal of 25225159 is 95152252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25225159 - 2²³ = 16836551 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 25225159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225153) 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 in 3 ways as a sum of consecutive naturals, for example, 1012 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (6308854).

Almost surely, 2^25225159 is an apocalyptic number.

25225159 is a deficient number, since it is larger than the sum of its proper divisors (10257).

25225159 is an equidigital number, since it uses as much as digits as its factorization.

25225159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256.

The product of its digits is 9000, while the sum is 31.

The square root of 25225159 is about 5022.4654304435. The cubic root of 25225159 is about 293.2769768052.

The spelling of 25225159 in words is "twenty-five million, two hundred twenty-five thousand, one hundred fifty-nine".