2565564572 has 12 divisors (see below), whose sum is σ = 4493208720. Its totient is φ = 1281790656.

The previous prime is 2565564559. The next prime is 2565564581. The reversal of 2565564572 is 2754655652.

2565564572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242072 + ... + 252447.

It is an arithmetic number, because the mean of its divisors is an integer number (374434060).

Almost surely, 2^2565564572 is an apocalyptic number.

It is an amenable number.

2565564572 is a deficient number, since it is larger than the sum of its proper divisors (1927644148).

2565564572 is a wasteful number, since it uses less digits than its factorization.

2565564572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495820 (or 495818 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 47.

The square root of 2565564572 is about 50651.4024682437. The cubic root of 2565564572 is about 1368.9712154927.

The spelling of 2565564572 in words is "two billion, five hundred sixty-five million, five hundred sixty-four thousand, five hundred seventy-two".