564225666 has 8 divisors (see below), whose sum is σ = 1128451344. Its totient is φ = 188075220.

The previous prime is 564225643. The next prime is 564225667. The reversal of 564225666 is 666522465.

It is a sphenic number, since it is the product of 3 distinct primes.

564225666 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (564225667) 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, 47018800 + ... + 47018811.

It is an arithmetic number, because the mean of its divisors is an integer number (141056418).

Almost surely, 2^564225666 is an apocalyptic number.

564225666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

564225666 is a wasteful number, since it uses less digits than its factorization.

564225666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94037616.

The product of its digits is 518400, while the sum is 42.

The square root of 564225666 is about 23753.4348253047. The cubic root of 564225666 is about 826.3251020909.

The spelling of 564225666 in words is "five hundred sixty-four million, two hundred twenty-five thousand, six hundred sixty-six".