Id say a great starting point for you will be 2500 calories, daily. You will definitely notice growth in as little as 2 weeks. Strength will increase a lot quicker in a surplus too

*Note, this total amount has taken into consideration your basic stats, activity level and a modest surplus.
For a macro breakdown id recommend:
107g protein
83g fat
330g carbs
And if you have trouble hitting these numbers, a huge tip is Liquid Calories! For instance, full fat milk, up & go's, oj, protein shakes, hell, even soft drink.
You'll find shakes to be the most help and the most macro friendly. Good types to look into is basically any Mass Gainers. Not straight protein. Highly reputable brands include Optimum Nutrition (Mass gainer), Dymatize (elite mass).