564665213 has 16 divisors (see below), whose sum is σ = 658022400. Its totient is φ = 474548976.

The previous prime is 564665209. The next prime is 564665287. The reversal of 564665213 is 312566465.

It is a happy number.

564665213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 564665213 - 2² = 564665209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564665113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101888 + ... + 107286.

It is an arithmetic number, because the mean of its divisors is an integer number (41126400).

Almost surely, 2^564665213 is an apocalyptic number.

It is an amenable number.

564665213 is a deficient number, since it is larger than the sum of its proper divisors (93357187).

564665213 is a wasteful number, since it uses less digits than its factorization.

564665213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5696.

The product of its digits is 129600, while the sum is 38.

The square root of 564665213 is about 23762.6853070102. The cubic root of 564665213 is about 826.5396229028.

The spelling of 564665213 in words is "five hundred sixty-four million, six hundred sixty-five thousand, two hundred thirteen".