2565269568 has 56 divisors (see below), whose sum is σ = 7541422560. Its totient is φ = 855089280.

The previous prime is 2565269563. The next prime is 2565269579. The reversal of 2565269568 is 8659625652.

2565269568 is a `hidden beast` number, since 2 + 56 + 5 + 26 + 9 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2565269563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 740538 + ... + 743993.

It is an arithmetic number, because the mean of its divisors is an integer number (134668260).

Almost surely, 2^2565269568 is an apocalyptic number.

It is an amenable number.

2565269568 is an abundant number, since it is smaller than the sum of its proper divisors (4976152992).

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

2565269568 is a wasteful number, since it uses less digits than its factorization.

2565269568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484552 (or 1484536 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 54.

The square root of 2565269568 is about 50648.4902835218. The cubic root of 2565269568 is about 1368.9187426415.

The spelling of 2565269568 in words is "two billion, five hundred sixty-five million, two hundred sixty-nine thousand, five hundred sixty-eight".