2055979109 has 2 divisors, whose sum is σ = 2055979110. Its totient is φ = 2055979108.

The previous prime is 2055979087. The next prime is 2055979193. The reversal of 2055979109 is 9019795502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1970472100 + 85507009 = 44390^2 + 9247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055979109 - 2¹² = 2055975013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055979309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027989554 + 1027989555.

It is an arithmetic number, because the mean of its divisors is an integer number (1027989555).

Almost surely, 2^2055979109 is an apocalyptic number.

It is an amenable number.

2055979109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055979109 is an equidigital number, since it uses as much as digits as its factorization.

2055979109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 47.

The square root of 2055979109 is about 45342.9058288063. The cubic root of 2055979109 is about 1271.5679291204.

The spelling of 2055979109 in words is "two billion, fifty-five million, nine hundred seventy-nine thousand, one hundred nine".