2780050289 has 2 divisors, whose sum is σ = 2780050290. Its totient is φ = 2780050288.

The previous prime is 2780050219. The next prime is 2780050297. The reversal of 2780050289 is 9820500872.

It is a happy number.

2780050289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1764672064 + 1015378225 = 42008^2 + 31865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2780050289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2780050219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390025144 + 1390025145.

It is an arithmetic number, because the mean of its divisors is an integer number (1390025145).

Almost surely, 2^2780050289 is an apocalyptic number.

It is an amenable number.

2780050289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780050289 is an equidigital number, since it uses as much as digits as its factorization.

2780050289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2780050289 is about 52726.1821963244. The cubic root of 2780050289 is about 1406.1043463853.

The spelling of 2780050289 in words is "two billion, seven hundred eighty million, fifty thousand, two hundred eighty-nine".