25369217 has 2 divisors, whose sum is σ = 25369218. Its totient is φ = 25369216.

The previous prime is 25369213. The next prime is 25369231. The reversal of 25369217 is 71296352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 7921 = 5036^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 25369217 - 2² = 25369213 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25369213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12684608 + 12684609.

It is an arithmetic number, because the mean of its divisors is an integer number (12684609).

Almost surely, 2^25369217 is an apocalyptic number.

It is an amenable number.

25369217 is a deficient number, since it is larger than the sum of its proper divisors (1).

25369217 is an equidigital number, since it uses as much as digits as its factorization.

25369217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 25369217 is about 5036.7863762522. The cubic root of 25369217 is about 293.8342078184.

The spelling of 25369217 in words is "twenty-five million, three hundred sixty-nine thousand, two hundred seventeen".