2565993226 has 16 divisors (see below), whose sum is σ = 4084228224. Its totient is φ = 1204910784.

The previous prime is 2565993181. The next prime is 2565993281. The reversal of 2565993226 is 6223995652.

2565993226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2565993226.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65760 + ... + 97243.

It is an arithmetic number, because the mean of its divisors is an integer number (255264264).

Almost surely, 2^2565993226 is an apocalyptic number.

2565993226 is a deficient number, since it is larger than the sum of its proper divisors (1518234998).

2565993226 is a wasteful number, since it uses less digits than its factorization.

2565993226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163485.

The product of its digits is 1749600, while the sum is 49.

The square root of 2565993226 is about 50655.6337044558. The cubic root of 2565993226 is about 1369.0474537231.

The spelling of 2565993226 in words is "two billion, five hundred sixty-five million, nine hundred ninety-three thousand, two hundred twenty-six".