Use a tool like VirusTotal to upload the file (or its URL) and check it against multiple antivirus engines before extracting it.
Since "54214" is a generic numeric string, this specific file could be several things: 54214 rar
Look at the website or email where you found the link. If it's from an untrusted source, it is safest to delete it. Use a tool like VirusTotal to upload the