55611172223 has 2 divisors, whose sum is σ = 55611172224. Its totient is φ = 55611172222.

The previous prime is 55611172213. The next prime is 55611172229. The reversal of 55611172223 is 32227111655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55611172223 - 2¹⁶ = 55611106687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55611172229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805586111 + 27805586112.

It is an arithmetic number, because the mean of its divisors is an integer number (27805586112).

Almost surely, 2^55611172223 is an apocalyptic number.

55611172223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55611172223 is an equidigital number, since it uses as much as digits as its factorization.

55611172223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

Adding to 55611172223 its reverse (32227111655), we get a palindrome (87838283878).

The spelling of 55611172223 in words is "fifty-five billion, six hundred eleven million, one hundred seventy-two thousand, two hundred twenty-three".