Job in ireland

Hi Respected members,

I am moving from india to dublin. I have been offered 50E as gross salary.i want to know if this salary is enuf for comfortable living like rent, food (3 times), public transportation and some entertainment with twice travel to india.
How is the tax caluculated in ireland(Dublin) and im bachelor. Is 55K Euro enuf or is it difficult to survive with no potential to save money. What salary is best salary for IT security Specialist.which areas in dublin is considered cheap with better connectivity and safe. Iam having 10years of work experience in IT.

Looking for your kind replies. I need to accept the offer at the earliest.