12522663 has 6 divisors (see below), whose sum is σ = 18088304. Its totient is φ = 8348436.

The previous prime is 12522647. The next prime is 12522677. The reversal of 12522663 is 36622521.

It is not a de Polignac number, because 12522663 - 2⁴ = 12522647 is a prime.

It is a super-2 number, since 2×12522663² = 313634177223138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695695 + ... + 695712.

Almost surely, 2^12522663 is an apocalyptic number.

12522663 is a deficient number, since it is larger than the sum of its proper divisors (5565641).

12522663 is a wasteful number, since it uses less digits than its factorization.

12522663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391413 (or 1391410 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 12522663 is about 3538.7374867317. The cubic root of 12522663 is about 232.2196134394.

The spelling of 12522663 in words is "twelve million, five hundred twenty-two thousand, six hundred sixty-three".