2564560284 has 96 divisors (see below), whose sum is σ = 7095137280. Its totient is φ = 710726400.

The previous prime is 2564560259. The next prime is 2564560307. The reversal of 2564560284 is 4820654652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180189 + ... + 193899.

It is an arithmetic number, because the mean of its divisors is an integer number (73907680).

Almost surely, 2^2564560284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2564560284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547568640).

2564560284 is an abundant number, since it is smaller than the sum of its proper divisors (4530576996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564560284 is a wasteful number, since it uses less digits than its factorization.

2564560284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13851 (or 13849 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The square root of 2564560284 is about 50641.4877743535. The cubic root of 2564560284 is about 1368.7925646529.

The spelling of 2564560284 in words is "two billion, five hundred sixty-four million, five hundred sixty thousand, two hundred eighty-four".