2550556663 has 2 divisors, whose sum is σ = 2550556664. Its totient is φ = 2550556662.

The previous prime is 2550556517. The next prime is 2550556777. The reversal of 2550556663 is 3666550552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2550556663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2550556163) 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, 1275278331 + 1275278332.

It is an arithmetic number, because the mean of its divisors is an integer number (1275278332).

Almost surely, 2^2550556663 is an apocalyptic number.

2550556663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550556663 is an equidigital number, since it uses as much as digits as its factorization.

2550556663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 43.

The square root of 2550556663 is about 50503.0361760558. The cubic root of 2550556663 is about 1366.2966140738.

The spelling of 2550556663 in words is "two billion, five hundred fifty million, five hundred fifty-six thousand, six hundred sixty-three".