6564253 has 4 divisors (see below), whose sum is σ = 6909760. Its totient is φ = 6218748.

The previous prime is 6564247. The next prime is 6564287. The reversal of 6564253 is 3524656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6564253 - 2¹³ = 6556061 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 5² + 6⁸ + 4³ + 2²² + 5⁸ + 3⁹ .

It is a Duffinian number.

6564253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564203) 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 3 ways as a sum of consecutive naturals, for example, 172725 + ... + 172762.

It is an arithmetic number, because the mean of its divisors is an integer number (1727440).

Almost surely, 2^6564253 is an apocalyptic number.

It is an amenable number.

6564253 is a deficient number, since it is larger than the sum of its proper divisors (345507).

6564253 is a wasteful number, since it uses less digits than its factorization.

6564253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345506.

The product of its digits is 21600, while the sum is 31.

The square root of 6564253 is about 2562.0798192094. The cubic root of 6564253 is about 187.2384786640.

The spelling of 6564253 in words is "six million, five hundred sixty-four thousand, two hundred fifty-three".