2564562012 has 24 divisors (see below), whose sum is σ = 6298924800. Its totient is φ = 809861616.

The previous prime is 2564561999. The next prime is 2564562059. The reversal of 2564562012 is 2102654652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5623812 + ... + 5624267.

It is an arithmetic number, because the mean of its divisors is an integer number (262455200).

Almost surely, 2^2564562012 is an apocalyptic number.

It is an amenable number.

2564562012 is an abundant number, since it is smaller than the sum of its proper divisors (3734362788).

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

2564562012 is a wasteful number, since it uses less digits than its factorization.

2564562012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11248105 (or 11248103 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 2564562012 is about 50641.5048354608. The cubic root of 2564562012 is about 1368.7928720835.

The spelling of 2564562012 in words is "two billion, five hundred sixty-four million, five hundred sixty-two thousand, twelve".