551106109 has 2 divisors, whose sum is σ = 551106110. Its totient is φ = 551106108.

The previous prime is 551106107. The next prime is 551106173. The reversal of 551106109 is 901601155.

551106109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476767225 + 74338884 = 21835^2 + 8622^2 .

It is a cyclic number.

It is not a de Polignac number, because 551106109 - 2¹ = 551106107 is a prime.

It is a super-3 number, since 3×551106109³ (a number of 27 digits) contains 333 as substring.

Together with 551106107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551106107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275553054 + 275553055.

It is an arithmetic number, because the mean of its divisors is an integer number (275553055).

Almost surely, 2^551106109 is an apocalyptic number.

It is an amenable number.

551106109 is a deficient number, since it is larger than the sum of its proper divisors (1).

551106109 is an equidigital number, since it uses as much as digits as its factorization.

551106109 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 28.

The square root of 551106109 is about 23475.6492774960. The cubic root of 551106109 is about 819.8701504682.

The spelling of 551106109 in words is "five hundred fifty-one million, one hundred six thousand, one hundred nine".