564547320 has 144 divisors (see below), whose sum is σ = 1910661480. Its totient is φ = 149921280.

The previous prime is 564547309. The next prime is 564547349. The reversal of 564547320 is 23745465.

564547320 is a `hidden beast` number, since 5 + 645 + 4 + 7 + 3 + 2 + 0 = 666.

564547320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2342400 + ... + 2342640.

Almost surely, 2^564547320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564547320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955330740).

564547320 is an abundant number, since it is smaller than the sum of its proper divisors (1346114160).

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

564547320 is an equidigital number, since it uses as much as digits as its factorization.

564547320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 564547320 is about 23760.2045445741. The cubic root of 564547320 is about 826.4820961797.

The spelling of 564547320 in words is "five hundred sixty-four million, five hundred forty-seven thousand, three hundred twenty".