2564385683 has 12 divisors (see below), whose sum is σ = 2619950760. Its totient is φ = 2509449696.

The previous prime is 2564385641. The next prime is 2564385721. The reversal of 2564385683 is 3865834652.

It is not a de Polignac number, because 2564385683 - 2²⁰ = 2563337107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564385613) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5788460 + ... + 5788902.

It is an arithmetic number, because the mean of its divisors is an integer number (218329230).

Almost surely, 2^2564385683 is an apocalyptic number.

2564385683 is a deficient number, since it is larger than the sum of its proper divisors (55565077).

2564385683 is an frugal number, since it uses more digits than its factorization.

2564385683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 695 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 50.

The square root of 2564385683 is about 50639.7638521350. The cubic root of 2564385683 is about 1368.7615004615.

The spelling of 2564385683 in words is "two billion, five hundred sixty-four million, three hundred eighty-five thousand, six hundred eighty-three".