10803563 has 4 divisors (see below), whose sum is σ = 10812768. Its totient is φ = 10794360.

The previous prime is 10803547. The next prime is 10803577. The reversal of 10803563 is 36530801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10803563 - 2⁴ = 10803547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10803503) 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 3 ways as a sum of consecutive naturals, for example, 2531 + ... + 5292.

It is an arithmetic number, because the mean of its divisors is an integer number (2703192).

Almost surely, 2^10803563 is an apocalyptic number.

10803563 is a deficient number, since it is larger than the sum of its proper divisors (9205).

10803563 is an equidigital number, since it uses as much as digits as its factorization.

10803563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 10803563 is about 3286.8773935150. The cubic root of 10803563 is about 221.0661950314.

It can be divided in two parts, 108035 and 63, that multiplied together give a triangular number (6806205 = T₃₆₈₉).

The spelling of 10803563 in words is "ten million, eight hundred three thousand, five hundred sixty-three".