551353201109 has 2 divisors, whose sum is σ = 551353201110. Its totient is φ = 551353201108.

The previous prime is 551353201103. The next prime is 551353201151. The reversal of 551353201109 is 901102353155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513197438884 + 38155762225 = 716378^2 + 195335^2 .

It is a cyclic number.

It is not a de Polignac number, because 551353201109 - 2⁴ = 551353201093 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 (551353201103) 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, 275676600554 + 275676600555.

It is an arithmetic number, because the mean of its divisors is an integer number (275676600555).

Almost surely, 2^551353201109 is an apocalyptic number.

It is an amenable number.

551353201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

551353201109 is an equidigital number, since it uses as much as digits as its factorization.

551353201109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 35.

The spelling of 551353201109 in words is "five hundred fifty-one billion, three hundred fifty-three million, two hundred one thousand, one hundred nine".