13006563 has 8 divisors (see below), whose sum is σ = 17402448. Its totient is φ = 8640864.

The previous prime is 13006559. The next prime is 13006579. The reversal of 13006563 is 36560031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13006563 - 2² = 13006559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13006163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520 + ... + 8277.

It is an arithmetic number, because the mean of its divisors is an integer number (2175306).

Almost surely, 2^13006563 is an apocalyptic number.

13006563 is a deficient number, since it is larger than the sum of its proper divisors (4395885).

13006563 is a wasteful number, since it uses less digits than its factorization.

13006563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 13006563 is about 3606.4612849717. The cubic root of 13006563 is about 235.1730308577.

Adding to 13006563 its reverse (36560031), we get a palindrome (49566594).

The spelling of 13006563 in words is "thirteen million, six thousand, five hundred sixty-three".