11285563 has 4 divisors (see below), whose sum is σ = 11879560. Its totient is φ = 10691568.

The previous prime is 11285557. The next prime is 11285567. The reversal of 11285563 is 36558211.

11285563 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 11285563 - 2¹⁷ = 11154491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11285567) 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, 296970 + ... + 297007.

It is an arithmetic number, because the mean of its divisors is an integer number (2969890).

Almost surely, 2^11285563 is an apocalyptic number.

11285563 is a deficient number, since it is larger than the sum of its proper divisors (593997).

11285563 is an equidigital number, since it uses as much as digits as its factorization.

11285563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593996.

The product of its digits is 7200, while the sum is 31.

The square root of 11285563 is about 3359.3992022384. The cubic root of 11285563 is about 224.3060959321.

The spelling of 11285563 in words is "eleven million, two hundred eighty-five thousand, five hundred sixty-three".