55011061109 has 2 divisors, whose sum is σ = 55011061110. Its totient is φ = 55011061108.

The previous prime is 55011061103. The next prime is 55011061139. The reversal of 55011061109 is 90116011055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36798748900 + 18212312209 = 191830^2 + 134953^2 .

It is a cyclic number.

It is not a de Polignac number, because 55011061109 - 2⁴ = 55011061093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55011061103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27505530554 + 27505530555.

It is an arithmetic number, because the mean of its divisors is an integer number (27505530555).

Almost surely, 2^55011061109 is an apocalyptic number.

It is an amenable number.

55011061109 is a deficient number, since it is larger than the sum of its proper divisors (1).

55011061109 is an equidigital number, since it uses as much as digits as its factorization.

55011061109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 29.

The spelling of 55011061109 in words is "fifty-five billion, eleven million, sixty-one thousand, one hundred nine".