564005805 has 24 divisors (see below), whose sum is σ = 991907616. Its totient is φ = 273456480.

The previous prime is 564005791. The next prime is 564005851. The reversal of 564005805 is 508500465.

564005805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 564005805 - 2⁵ = 564005773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153559 + ... + 157188.

It is an arithmetic number, because the mean of its divisors is an integer number (41329484).

Almost surely, 2^564005805 is an apocalyptic number.

564005805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564005805 is a deficient number, since it is larger than the sum of its proper divisors (427901811).

564005805 is a wasteful number, since it uses less digits than its factorization.

564005805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310777 (or 310766 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 564005805 is about 23748.8063910589. The cubic root of 564005805 is about 826.2177571772.

The spelling of 564005805 in words is "five hundred sixty-four million, five thousand, eight hundred five".