2564485108 has 12 divisors (see below), whose sum is σ = 4494726180. Its totient is φ = 1280277632.

The previous prime is 2564485067. The next prime is 2564485169. The reversal of 2564485108 is 8015844652.

It can be written as a sum of positive squares in 2 ways, for example, as 1063542544 + 1500942564 = 32612^2 + 38742^2 .

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, 488293 + ... + 493516.

It is an arithmetic number, because the mean of its divisors is an integer number (374560515).

Almost surely, 2^2564485108 is an apocalyptic number.

It is an amenable number.

2564485108 is a deficient number, since it is larger than the sum of its proper divisors (1930241072).

2564485108 is a wasteful number, since it uses less digits than its factorization.

2564485108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982466 (or 982464 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 2564485108 is about 50640.7455316369. The cubic root of 2564485108 is about 1368.7791898642.

The spelling of 2564485108 in words is "two billion, five hundred sixty-four million, four hundred eighty-five thousand, one hundred eight".