5222

5222 is a natural number that follows 5221 and precedes 5223. In mathematics, it is an even composite number with prime factorization 2 × 7 × 373. Its divisors are 1, 2, 7, 14, 373, 746, 2611, and 5222. The sum of all divisors is 8976, so the sum of proper divisors is 3254, making 5222 a deficient number. Because one of its prime factors, 7, is congruent to 3 modulo 4 and occurs to an odd power, 5222 cannot be expressed as a sum of two squares. A simple binary decomposition shows 5222 = 4096 + 1024 + 64 + 32 + 4 + 2.

In computing and networking, port 5222 is the standard TCP port used by the Extensible Messaging and Presence Protocol (XMPP), commonly known as Jabber, for client-to-server communications. This port is designated for non-encrypted XMPP connections, with TLS-encrypted variants often using port 5223.

Beyond pure mathematics and technology, 5222 may appear as a catalog or model number in various product lines or as a year designation in futuristic or fictional contexts (for example, a far-future timeline such as the year 5222 CE). As a relatively ordinary four-digit number, 5222 commonly appears in everyday numbering schemes, assignments, and identifiers without implying a specific, universal meaning.