12563417 has 2 divisors, whose sum is σ = 12563418. Its totient is φ = 12563416.

The previous prime is 12563413. The next prime is 12563437. The reversal of 12563417 is 71436521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 3481 = 3544^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 12563417 - 2² = 12563413 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12563417.

It is not a weakly prime, because it can be changed into another prime (12563413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281708 + 6281709.

It is an arithmetic number, because the mean of its divisors is an integer number (6281709).

Almost surely, 2^12563417 is an apocalyptic number.

It is an amenable number.

12563417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12563417 is an equidigital number, since it uses as much as digits as its factorization.

12563417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 12563417 is about 3544.4910777148. The cubic root of 12563417 is about 232.4712540095.

Adding to 12563417 its reverse (71436521), we get a palindrome (83999938).

The spelling of 12563417 in words is "twelve million, five hundred sixty-three thousand, four hundred seventeen".