25225169 has 2 divisors, whose sum is σ = 25225170. Its totient is φ = 25225168.

The previous prime is 25225153. The next prime is 25225171. The reversal of 25225169 is 96152252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18386944 + 6838225 = 4288^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 25225169 - 2⁴ = 25225153 is a prime.

It is a super-2 number, since 2×25225169² = 1272618302157122, which contains 22 as substring.

Together with 25225171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25225129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12612584 + 12612585.

It is an arithmetic number, because the mean of its divisors is an integer number (12612585).

Almost surely, 2^25225169 is an apocalyptic number.

It is an amenable number.

25225169 is a deficient number, since it is larger than the sum of its proper divisors (1).

25225169 is an equidigital number, since it uses as much as digits as its factorization.

25225169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 25225169 is about 5022.4664259704. The cubic root of 25225169 is about 293.2770155598.

The spelling of 25225169 in words is "twenty-five million, two hundred twenty-five thousand, one hundred sixty-nine".