2564527616 has 40 divisors (see below), whose sum is σ = 5856061200. Its totient is φ = 1099081728.

The previous prime is 2564527591. The next prime is 2564527631. The reversal of 2564527616 is 6167254652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354191 + ... + 361358.

It is an arithmetic number, because the mean of its divisors is an integer number (146401530).

Almost surely, 2^2564527616 is an apocalyptic number.

It is an amenable number.

2564527616 is an abundant number, since it is smaller than the sum of its proper divisors (3291533584).

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

2564527616 is an frugal number, since it uses more digits than its factorization.

2564527616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715574 (or 715558 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 2564527616 is about 50641.1652314597. The cubic root of 2564527616 is about 1368.7867526227.

The spelling of 2564527616 in words is "two billion, five hundred sixty-four million, five hundred twenty-seven thousand, six hundred sixteen".