6545223 has 6 divisors (see below), whose sum is σ = 9454224. Its totient is φ = 4363476.

The previous prime is 6545219. The next prime is 6545243. The reversal of 6545223 is 3225456.

6545223 is a `hidden beast` number, since 654 + 5 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 6545223 - 2² = 6545219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6545243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363615 + ... + 363632.

It is an arithmetic number, because the mean of its divisors is an integer number (1575704).

Almost surely, 2^6545223 is an apocalyptic number.

6545223 is a deficient number, since it is larger than the sum of its proper divisors (2909001).

6545223 is a wasteful number, since it uses less digits than its factorization.

6545223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727253 (or 727250 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 6545223 is about 2558.3633440151. The cubic root of 6545223 is about 187.0573665590.

The spelling of 6545223 in words is "six million, five hundred forty-five thousand, two hundred twenty-three".