55565104246109 has 2 divisors, whose sum is σ = 55565104246110. Its totient is φ = 55565104246108.

The previous prime is 55565104246039. The next prime is 55565104246139. The reversal of 55565104246109 is 90164240156555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55027881214084 + 537223032025 = 7418078^2 + 732955^2 .

It is a cyclic number.

It is not a de Polignac number, because 55565104246109 - 2⁸ = 55565104245853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55565104246139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27782552123054 + 27782552123055.

It is an arithmetic number, because the mean of its divisors is an integer number (27782552123055).

Almost surely, 2^{55565104246109} is an apocalyptic number.

It is an amenable number.

55565104246109 is a deficient number, since it is larger than the sum of its proper divisors (1).

55565104246109 is an equidigital number, since it uses as much as digits as its factorization.

55565104246109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480000, while the sum is 53.

The spelling of 55565104246109 in words is "fifty-five trillion, five hundred sixty-five billion, one hundred four million, two hundred forty-six thousand, one hundred nine".