564975280 has 80 divisors (see below), whose sum is σ = 1423328544. Its totient is φ = 207728640.

The previous prime is 564975277. The next prime is 564975319. The reversal of 564975280 is 82579465.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×564975280² = 638394134022156800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 564975280.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53650 + ... + 63310.

Almost surely, 2^564975280 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 564975280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711664272).

564975280 is an abundant number, since it is smaller than the sum of its proper divisors (858353264).

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

564975280 is a wasteful number, since it uses less digits than its factorization.

564975280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734 (or 9728 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 564975280 is about 23769.2086532135. The cubic root of 564975280 is about 826.6908840749.

The spelling of 564975280 in words is "five hundred sixty-four million, nine hundred seventy-five thousand, two hundred eighty".