6563223 has 12 divisors (see below), whose sum is σ = 9508720. Its totient is φ = 4362336.

The previous prime is 6563209. The next prime is 6563261. The reversal of 6563223 is 3223656.

6563223 is a `hidden beast` number, since 6 + 5 + 632 + 23 = 666.

It is not a de Polignac number, because 6563223 - 2⁵ = 6563191 is a prime.

It is a super-2 number, since 2×6563223² = 86151792295458, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6 + 5 + 6⁶ + 3¹³ + 2¹³ + 2¹⁷ + 3¹⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2790 + ... + 4572.

Almost surely, 2^6563223 is an apocalyptic number.

6563223 is a deficient number, since it is larger than the sum of its proper divisors (2945497).

6563223 is a wasteful number, since it uses less digits than its factorization.

6563223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198 (or 2195 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 6563223 is about 2561.8788027539. The cubic root of 6563223 is about 187.2286849261.

Adding to 6563223 its reverse (3223656), we get a palindrome (9786879).

It can be divided in two parts, 6563 and 223, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6563223 in words is "six million, five hundred sixty-three thousand, two hundred twenty-three".