2000563 has 4 divisors (see below), whose sum is σ = 2087568. Its totient is φ = 1913560.

The previous prime is 2000539. The next prime is 2000573. The reversal of 2000563 is 3650002.

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-2000563 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000503) 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, 43468 + ... + 43513.

It is an arithmetic number, because the mean of its divisors is an integer number (521892).

2^2000563 is an apocalyptic number.

2000563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2000563 is a deficient number, since it is larger than the sum of its proper divisors (87005).

2000563 is an equidigital number, since it uses as much as digits as its factorization.

2000563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87004.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2000563 is about 1414.4125989258. The cubic root of 2000563 is about 126.0039261395.

Adding to 2000563 its reverse (3650002), we get a palindrome (5650565).

The spelling of 2000563 in words is "two million, five hundred sixty-three", and thus it is an aban number.