Umama is from the Arabic Umāma. Arabic Umāma Umama bint Abi al-As granddaughter of Prophet Muhammad + daughter of Zaynab bint Muhammad central to pan-Islamic Prophetic heritage Umāma carried by Prophet during prayer hadith narrative + Sahih Bukhari central to Islamic family-life heritage.
Umama does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Umama reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.