11056563 has 24 divisors (see below), whose sum is σ = 18357248. Its totient is φ = 6281712.

The previous prime is 11056561. The next prime is 11056589. The reversal of 11056563 is 36565011.

It is a happy number.

11056563 is a `hidden beast` number, since 1 + 1 + 0 + 5 + 656 + 3 = 666.

11056563 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 11056563 - 2¹ = 11056561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13656 + ... + 14442.

Almost surely, 2^11056563 is an apocalyptic number.

11056563 is a deficient number, since it is larger than the sum of its proper divisors (7300685).

11056563 is a wasteful number, since it uses less digits than its factorization.

11056563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 11056563 is about 3325.1410496398. The cubic root of 11056563 is about 222.7785544609.

The spelling of 11056563 in words is "eleven million, fifty-six thousand, five hundred sixty-three".