55111225223 has 2 divisors, whose sum is σ = 55111225224. Its totient is φ = 55111225222.

The previous prime is 55111225199. The next prime is 55111225237. The reversal of 55111225223 is 32252211155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55111225223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55111225283) 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, 27555612611 + 27555612612.

It is an arithmetic number, because the mean of its divisors is an integer number (27555612612).

Almost surely, 2^55111225223 is an apocalyptic number.

55111225223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55111225223 is an equidigital number, since it uses as much as digits as its factorization.

55111225223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 29.

Adding to 55111225223 its reverse (32252211155), we get a palindrome (87363436378).

The spelling of 55111225223 in words is "fifty-five billion, one hundred eleven million, two hundred twenty-five thousand, two hundred twenty-three".