6552223 has 4 divisors (see below), whose sum is σ = 6691680. Its totient is φ = 6412768.

The previous prime is 6552209. The next prime is 6552229. The reversal of 6552223 is 3222556.

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-6552223 is a prime.

It is a Duffinian number.

6552223 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6552229) 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, 69658 + ... + 69751.

It is an arithmetic number, because the mean of its divisors is an integer number (1672920).

Almost surely, 2^6552223 is an apocalyptic number.

6552223 is a deficient number, since it is larger than the sum of its proper divisors (139457).

6552223 is a wasteful number, since it uses less digits than its factorization.

6552223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139456.

The product of its digits is 3600, while the sum is 25.

The square root of 6552223 is about 2559.7310405588. The cubic root of 6552223 is about 187.1240276465.

Adding to 6552223 its reverse (3222556), we get a palindrome (9774779).

The spelling of 6552223 in words is "six million, five hundred fifty-two thousand, two hundred twenty-three".