565219968 has 64 divisors (see below), whose sum is σ = 1504557120. Its totient is φ = 188006400.

The previous prime is 565219883. The next prime is 565219969. The reversal of 565219968 is 869912565.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×565219968² = 638947224451842048, 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 565219968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565219969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220293 + ... + 222843.

It is an arithmetic number, because the mean of its divisors is an integer number (23508705).

Almost surely, 2^565219968 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 565219968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752278560).

565219968 is an abundant number, since it is smaller than the sum of its proper divisors (939337152).

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

565219968 is a wasteful number, since it uses less digits than its factorization.

565219968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3133 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 565219968 is about 23774.3552593966. The cubic root of 565219968 is about 826.8102120944.

The spelling of 565219968 in words is "five hundred sixty-five million, two hundred nineteen thousand, nine hundred sixty-eight".