2566280851 has 2 divisors, whose sum is σ = 2566280852. Its totient is φ = 2566280850.

The previous prime is 2566280777. The next prime is 2566280869. The reversal of 2566280851 is 1580826652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2566280851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2566280798 and 2566280807.

It is not a weakly prime, because it can be changed into another prime (2566280351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283140425 + 1283140426.

It is an arithmetic number, because the mean of its divisors is an integer number (1283140426).

Almost surely, 2^2566280851 is an apocalyptic number.

2566280851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566280851 is an equidigital number, since it uses as much as digits as its factorization.

2566280851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 2566280851 is about 50658.4726477220. The cubic root of 2566280851 is about 1369.0986044897.

The spelling of 2566280851 in words is "two billion, five hundred sixty-six million, two hundred eighty thousand, eight hundred fifty-one".