55332666623309 has 2 divisors, whose sum is σ = 55332666623310. Its totient is φ = 55332666623308.

The previous prime is 55332666623291. The next prime is 55332666623363. The reversal of 55332666623309 is 90332666623355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29355265802500 + 25977400820809 = 5418050^2 + 5096803^2 .

It is a cyclic number.

It is not a de Polignac number, because 55332666623309 - 2⁸ = 55332666623053 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 (55332666623369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27666333311654 + 27666333311655.

It is an arithmetic number, because the mean of its divisors is an integer number (27666333311655).

Almost surely, 2^{55332666623309} is an apocalyptic number.

It is an amenable number.

55332666623309 is a deficient number, since it is larger than the sum of its proper divisors (1).

55332666623309 is an equidigital number, since it uses as much as digits as its factorization.

55332666623309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94478400, while the sum is 59.

The spelling of 55332666623309 in words is "fifty-five trillion, three hundred thirty-two billion, six hundred sixty-six million, six hundred twenty-three thousand, three hundred nine".