2564514812 has 24 divisors (see below), whose sum is σ = 4686498432. Its totient is φ = 1225598000.

The previous prime is 2564514803. The next prime is 2564514839. The reversal of 2564514812 is 2184154652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123887 + ... + 143097.

It is an arithmetic number, because the mean of its divisors is an integer number (195270768).

Almost surely, 2^2564514812 is an apocalyptic number.

It is an amenable number.

2564514812 is a deficient number, since it is larger than the sum of its proper divisors (2121983620).

2564514812 is a wasteful number, since it uses less digits than its factorization.

2564514812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20689 (or 20687 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 2564514812 is about 50641.0388124098. The cubic root of 2564514812 is about 1368.7844746236.

The spelling of 2564514812 in words is "two billion, five hundred sixty-four million, five hundred fourteen thousand, eight hundred twelve".