12566063 has 4 divisors (see below), whose sum is σ = 12577728. Its totient is φ = 12554400.

The previous prime is 12566053. The next prime is 12566089. The reversal of 12566063 is 36066521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12566063 - 2¹⁰ = 12565039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12566003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031 + ... + 6432.

It is an arithmetic number, because the mean of its divisors is an integer number (3144432).

Almost surely, 2^12566063 is an apocalyptic number.

12566063 is a deficient number, since it is larger than the sum of its proper divisors (11665).

12566063 is a wasteful number, since it uses less digits than its factorization.

12566063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11664.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 12566063 is about 3544.8643133412. The cubic root of 12566063 is about 232.4875732365.

The spelling of 12566063 in words is "twelve million, five hundred sixty-six thousand, sixty-three".