2050775989 has 2 divisors, whose sum is σ = 2050775990. Its totient is φ = 2050775988.

The previous prime is 2050775939. The next prime is 2050776029. The reversal of 2050775989 is 9895770502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1158857764 + 891918225 = 34042^2 + 29865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050775989 - 2⁹ = 2050775477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050775929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025387994 + 1025387995.

It is an arithmetic number, because the mean of its divisors is an integer number (1025387995).

Almost surely, 2^2050775989 is an apocalyptic number.

It is an amenable number.

2050775989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050775989 is an equidigital number, since it uses as much as digits as its factorization.

2050775989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The square root of 2050775989 is about 45285.4942448462. The cubic root of 2050775989 is about 1270.4943595900.

The spelling of 2050775989 in words is "two billion, fifty million, seven hundred seventy-five thousand, nine hundred eighty-nine".