565335880 has 64 divisors (see below), whose sum is σ = 1371686400. Its totient is φ = 208995840.

The previous prime is 565335863. The next prime is 565335893. The reversal of 565335880 is 88533565.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22089 + ... + 40231.

It is an arithmetic number, because the mean of its divisors is an integer number (21432600).

Almost surely, 2^565335880 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 565335880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685843200).

565335880 is an abundant number, since it is smaller than the sum of its proper divisors (806350520).

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

565335880 is a wasteful number, since it uses less digits than its factorization.

565335880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18214 (or 18210 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 565335880 is about 23776.7928871831. The cubic root of 565335880 is about 826.8667273630.

The spelling of 565335880 in words is "five hundred sixty-five million, three hundred thirty-five thousand, eight hundred eighty".