Full deck Nero never played with?

• XXVI doubled
• IV x XIII
• Number in a Roman deck?
• Full deck at Caesars Palace?
• A midlife age, to Nerva
• Half of CIV
• 52, once
• 2018 Super Bowl number
• One fourth of CCVIII

WordNet Word definitions in WordNet
adj. being two more than fifty [syn: fifty-two , 52 ]