2564485313 has 8 divisors (see below), whose sum is σ = 2764003368. Its totient is φ = 2365288704.

The previous prime is 2564485291. The next prime is 2564485333. The reversal of 2564485313 is 3135844652.

It can be written as a sum of positive squares in 4 ways, for example, as 7463824 + 2557021489 = 2732^2 + 50567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2564485313 - 2¹⁶ = 2564419777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564485333) 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, 63656 + ... + 95817.

It is an arithmetic number, because the mean of its divisors is an integer number (345500421).

Almost surely, 2^2564485313 is an apocalyptic number.

It is an amenable number.

2564485313 is a deficient number, since it is larger than the sum of its proper divisors (199518055).

2564485313 is a wasteful number, since it uses less digits than its factorization.

2564485313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160723.

The product of its digits is 345600, while the sum is 41.

The square root of 2564485313 is about 50640.7475556987. The cubic root of 2564485313 is about 1368.7792263367.

The spelling of 2564485313 in words is "two billion, five hundred sixty-four million, four hundred eighty-five thousand, three hundred thirteen".