2564840508 has 12 divisors (see below), whose sum is σ = 5984627880. Its totient is φ = 854946832.

The previous prime is 2564840489. The next prime is 2564840513. The reversal of 2564840508 is 8050484652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2564840508.

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, 106868343 + ... + 106868366.

It is an arithmetic number, because the mean of its divisors is an integer number (498718990).

Almost surely, 2^2564840508 is an apocalyptic number.

It is an amenable number.

2564840508 is an abundant number, since it is smaller than the sum of its proper divisors (3419787372).

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

2564840508 is a wasteful number, since it uses less digits than its factorization.

2564840508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213736716 (or 213736714 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 2564840508 is about 50644.2544421379. The cubic root of 2564840508 is about 1368.8424178461.

The spelling of 2564840508 in words is "two billion, five hundred sixty-four million, eight hundred forty thousand, five hundred eight".