12563217 has 12 divisors (see below), whose sum is σ = 18190224. Its totient is φ = 8355480.

The previous prime is 12563209. The next prime is 12563249. The reversal of 12563217 is 71236521.

It is a happy number.

12563217 is a `hidden beast` number, since 1 + 25 + 632 + 1 + 7 = 666.

It is not a de Polignac number, because 12563217 - 2³ = 12563209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12563207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2998 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (1515852).

Almost surely, 2^12563217 is an apocalyptic number.

It is an amenable number.

12563217 is a deficient number, since it is larger than the sum of its proper divisors (5627007).

12563217 is a wasteful number, since it uses less digits than its factorization.

12563217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340 (or 3337 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12563217 is about 3544.4628648076. The cubic root of 12563217 is about 232.4700204147.

Adding to 12563217 its reverse (71236521), we get a palindrome (83799738).

The spelling of 12563217 in words is "twelve million, five hundred sixty-three thousand, two hundred seventeen".