Code point
U+324C
Glyph appearance depends on your fonts.
U+324C
NoU+324C CIRCLED NUMBER FIFTY ON BLACK SQUARE is a Unicode 16.0.0 character in the Other Number category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+324C
12876
㉌
㉌
E3 89 8C
324C
0000324C
%E3%89%8C
\u324C
\u324C
\u324C
\324C