565648944 has 120 divisors (see below), whose sum is σ = 1758659760. Its totient is φ = 156022272.

The previous prime is 565648921. The next prime is 565648949. The reversal of 565648944 is 449846565.

It is not an unprimeable number, because it can be changed into a prime (565648949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64062 + ... + 72354.

It is an arithmetic number, because the mean of its divisors is an integer number (14655498).

Almost surely, 2^565648944 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 565648944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879329880).

565648944 is an abundant number, since it is smaller than the sum of its proper divisors (1193010816).

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

565648944 is a wasteful number, since it uses less digits than its factorization.

565648944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347 (or 8334 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 51.

The square root of 565648944 is about 23783.3753702034. The cubic root of 565648944 is about 827.0193295274.

The spelling of 565648944 in words is "five hundred sixty-five million, six hundred forty-eight thousand, nine hundred forty-four".