2566425888 has 216 divisors, whose sum is σ = 8031009168. Its totient is φ = 776894976.

The previous prime is 2566425871. The next prime is 2566425919. The reversal of 2566425888 is 8885246652.

It is a happy number.

2566425888 is a `hidden beast` number, since 2 + 56 + 6 + 4 + 2 + 588 + 8 = 666.

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 35 ways as a sum of consecutive naturals, for example, 3260631 + ... + 3261417.

It is an arithmetic number, because the mean of its divisors is an integer number (37180598).

Almost surely, 2^2566425888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566425888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015504584).

2566425888 is an abundant number, since it is smaller than the sum of its proper divisors (5464583280).

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

2566425888 is a wasteful number, since it uses less digits than its factorization.

2566425888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 872 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The square root of 2566425888 is about 50659.9041451916. The cubic root of 2566425888 is about 1369.1243961866.

The spelling of 2566425888 in words is "two billion, five hundred sixty-six million, four hundred twenty-five thousand, eight hundred eighty-eight".