2568666125 has 16 divisors (see below), whose sum is σ = 3212691456. Its totient is φ = 2050448400.

The previous prime is 2568666109. The next prime is 2568666161. The reversal of 2568666125 is 5216668652.

It is not a de Polignac number, because 2568666125 - 2⁴ = 2568666109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2568666125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35684 + ... + 80066.

It is an arithmetic number, because the mean of its divisors is an integer number (200793216).

Almost surely, 2^2568666125 is an apocalyptic number.

2568666125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2568666125 is a deficient number, since it is larger than the sum of its proper divisors (644025331).

2568666125 is an equidigital number, since it uses as much as digits as its factorization.

2568666125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44861 (or 44851 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 2568666125 is about 50682.0098752999. The cubic root of 2568666125 is about 1369.5226505752.

The spelling of 2568666125 in words is "two billion, five hundred sixty-eight million, six hundred sixty-six thousand, one hundred twenty-five".