25225469 has 2 divisors, whose sum is σ = 25225470. Its totient is φ = 25225468.

The previous prime is 25225463. The next prime is 25225471. The reversal of 25225469 is 96452252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23088025 + 2137444 = 4805^2 + 1462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25225469 is a prime.

It is a super-2 number, since 2×25225469² = 1272648572539922, which contains 22 as substring.

Together with 25225471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25225463) 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 as a sum of consecutive naturals, namely, 12612734 + 12612735.

It is an arithmetic number, because the mean of its divisors is an integer number (12612735).

Almost surely, 2^25225469 is an apocalyptic number.

It is an amenable number.

25225469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25225469 is an equidigital number, since it uses as much as digits as its factorization.

25225469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 25225469 is about 5022.4962916860. The cubic root of 25225469 is about 293.2781781916.

The spelling of 25225469 in words is "twenty-five million, two hundred twenty-five thousand, four hundred sixty-nine".