This character is a Other Punctuation and is mainly used in the Armenian script. The character is also known as hartsakan nshan.
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. The word that U+055E forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The question mark? (also known as interrogation point, query, or eroteme in journalism) is a punctuation mark that indicates a question or interrogative clause or phrase in many languages.
Representations
System
Representation (click value to copy)
Nº
1374
UTF-8
D5 9E
UTF-16
05 5E
UTF-32
00 00 05 5E
URL-Quoted
%D5%9E
HTML hex reference
՞
Wrong windows-1252 Mojibake
Õž
alias
hartsakan nshan
Encoding: GB18030 (hex bytes)
81 30 ED 38
Adobe Glyph List
questionarmenian
RFC 5137
\u'055E'
Bash and Zsh inside echo -e
\u055E
C and C++
\u055E
C#
\u055E
CSS
\00055E
Excel
=UNICHAR(1374)
Go
\u055E
JavaScript
\u055E
Modern JavaScript since ES6
\u{55e}
JSON
\u055E
Java
\u055E
Lua
\u{55E}
Matlab
char(1374)
Perl
"\x{55E}"
PHP
\u{55e}
PostgreSQL
U&'\055E'
PowerShell
`u{55E}
Python
\u055E
Ruby
\u{55e}
Rust
\u{55e}
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