2564602045 has 16 divisors (see below), whose sum is σ = 3243096000. Its totient is φ = 1941539328.

The previous prime is 2564602039. The next prime is 2564602057. The reversal of 2564602045 is 5402064652.

It is a cyclic number.

It is not a de Polignac number, because 2564602045 - 2⁵ = 2564602013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2564602045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73726 + ... + 102784.

It is an arithmetic number, because the mean of its divisors is an integer number (202693500).

Almost surely, 2^2564602045 is an apocalyptic number.

It is an amenable number.

2564602045 is a deficient number, since it is larger than the sum of its proper divisors (678493955).

2564602045 is a wasteful number, since it uses less digits than its factorization.

2564602045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30012.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2564602045 is about 50641.9000927098. The cubic root of 2564602045 is about 1368.7999943653.

Adding to 2564602045 its reverse (5402064652), we get a palindrome (7966666697).

The spelling of 2564602045 in words is "two billion, five hundred sixty-four million, six hundred two thousand, forty-five".