2565566476 has 24 divisors (see below), whose sum is σ = 4905455184. Its totient is φ = 1164367680.

The previous prime is 2565566473. The next prime is 2565566573. The reversal of 2565566476 is 6746655652.

It is not an unprimeable number, because it can be changed into a prime (2565566473) 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, 15915 + ... + 73378.

It is an arithmetic number, because the mean of its divisors is an integer number (204393966).

Almost surely, 2^2565566476 is an apocalyptic number.

It is an amenable number.

2565566476 is a deficient number, since it is larger than the sum of its proper divisors (2339888708).

2565566476 is a wasteful number, since it uses less digits than its factorization.

2565566476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89961 (or 89959 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 52.

The square root of 2565566476 is about 50651.4212633762. The cubic root of 2565566476 is about 1368.9715541473.

The spelling of 2565566476 in words is "two billion, five hundred sixty-five million, five hundred sixty-six thousand, four hundred seventy-six".