This character is a Decimal Number and is mainly used in the Thai script. The codepoint has the decimal value 9.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This number joins with other adjacent letters and numbers to form a word. U+0E59 forms a number with similar characters, which prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Thai numerals (Thai: เลขไทย, RTGS: lek thai, pronounced[lêːktʰāj]) are a set of numerals traditionally used in Thailand, although the Arabic numerals are more common due to extensive westernization of Thailand in the modern Rattanakosin period. Thai numerals follow the Hindu–Arabic numeral system commonly used in the rest of the world. In Thai language, numerals often follow the modified noun and precede a measure word, although variations to this pattern occur.
Representations
System
Representation (click value to copy)
Nº
3673
UTF-8
E0 B9 99
UTF-16
0E 59
UTF-32
00 00 0E 59
URL-Quoted
%E0%B9%99
HTML hex reference
๙
Wrong windows-1252 Mojibake
๙
Encoding: CP874 (hex bytes)
F9
Encoding: GB18030 (hex bytes)
81 32 D7 37
Encoding: ISO8859_11 (hex bytes)
F9
Encoding: CP838 (hex bytes)
B9
Adobe Glyph List
ninethai
RFC 5137
\u'0E59'
Bash and Zsh inside echo -e
\u0E59
C and C++
\u0E59
C#
\u0E59
CSS
\000E59
Excel
=UNICHAR(3673)
Go
\u0E59
JavaScript
\u0E59
Modern JavaScript since ES6
\u{e59}
JSON
\u0E59
Java
\u0E59
Lua
\u{E59}
Matlab
char(3673)
Perl
"\x{E59}"
PHP
\u{e59}
PostgreSQL
U&'\0E59'
PowerShell
`u{E59}
Python
\u0E59
Ruby
\u{e59}
Rust
\u{e59}
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