2565263204 has 24 divisors (see below), whose sum is σ = 5180343168. Its totient is φ = 1088723520.

The previous prime is 2565263147. The next prime is 2565263219. The reversal of 2565263204 is 4023625652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441857 + ... + 447624.

It is an arithmetic number, because the mean of its divisors is an integer number (215847632).

Almost surely, 2^2565263204 is an apocalyptic number.

It is an amenable number.

2565263204 is an abundant number, since it is smaller than the sum of its proper divisors (2615079964).

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

2565263204 is a wasteful number, since it uses less digits than its factorization.

2565263204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889595 (or 889593 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2565263204 is about 50648.4274583131. The cubic root of 2565263204 is about 1368.9176106219.

Adding to 2565263204 its reverse (4023625652), we get a palindrome (6588888856).

The spelling of 2565263204 in words is "two billion, five hundred sixty-five million, two hundred sixty-three thousand, two hundred four".