25436317 has 2 divisors, whose sum is σ = 25436318. Its totient is φ = 25436316.

The previous prime is 25436303. The next prime is 25436381. The reversal of 25436317 is 71363452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22174681 + 3261636 = 4709^2 + 1806^2 .

It is a cyclic number.

It is not a de Polignac number, because 25436317 - 2⁷ = 25436189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25436717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12718158 + 12718159.

It is an arithmetic number, because the mean of its divisors is an integer number (12718159).

Almost surely, 2^25436317 is an apocalyptic number.

It is an amenable number.

25436317 is a deficient number, since it is larger than the sum of its proper divisors (1).

25436317 is an equidigital number, since it uses as much as digits as its factorization.

25436317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 25436317 is about 5043.4429708286. The cubic root of 25436317 is about 294.0930374868.

Adding to 25436317 its reverse (71363452), we get a palindrome (96799769).

The spelling of 25436317 in words is "twenty-five million, four hundred thirty-six thousand, three hundred seventeen".