565104280 has 128 divisors (see below), whose sum is σ = 1419264000. Its totient is φ = 201180672.

The previous prime is 565104269. The next prime is 565104311. The reversal of 565104280 is 82401565.

565104280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2839621 + ... + 2839819.

It is an arithmetic number, because the mean of its divisors is an integer number (11088000).

Almost surely, 2^565104280 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 565104280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709632000).

565104280 is an abundant number, since it is smaller than the sum of its proper divisors (854159720).

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

565104280 is a wasteful number, since it uses less digits than its factorization.

565104280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 565104280 is about 23771.9220930913. The cubic root of 565104280 is about 826.7537983370.

The spelling of 565104280 in words is "five hundred sixty-five million, one hundred four thousand, two hundred eighty".