5561563 has 4 divisors (see below), whose sum is σ = 6356080. Its totient is φ = 4767048.

The previous prime is 5561537. The next prime is 5561579. The reversal of 5561563 is 3651655.

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 5561563 - 2⁵ = 5561531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561513) 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, 397248 + ... + 397261.

It is an arithmetic number, because the mean of its divisors is an integer number (1589020).

Almost surely, 2^5561563 is an apocalyptic number.

5561563 is a deficient number, since it is larger than the sum of its proper divisors (794517).

5561563 is an equidigital number, since it uses as much as digits as its factorization.

5561563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794516.

The product of its digits is 13500, while the sum is 31.

The square root of 5561563 is about 2358.2966310454. The cubic root of 5561563 is about 177.1735771570.

The spelling of 5561563 in words is "five million, five hundred sixty-one thousand, five hundred sixty-three".