12026563 has 4 divisors (see below), whose sum is σ = 12659560. Its totient is φ = 11393568.

The previous prime is 12026549. The next prime is 12026569. The reversal of 12026563 is 36562021.

12026563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12026563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12026569) 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, 316470 + ... + 316507.

It is an arithmetic number, because the mean of its divisors is an integer number (3164890).

Almost surely, 2^12026563 is an apocalyptic number.

12026563 is a deficient number, since it is larger than the sum of its proper divisors (632997).

12026563 is an equidigital number, since it uses as much as digits as its factorization.

12026563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632996.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12026563 is about 3467.9335345419. The cubic root of 12026563 is about 229.1116520429. Note that the first 3 decimals are identical.

Adding to 12026563 its reverse (36562021), we get a palindrome (48588584).

The spelling of 12026563 in words is "twelve million, twenty-six thousand, five hundred sixty-three".