56421

56421 is a six-digit number. It falls between the integers 56420 and 56422. In the realm of mathematics, it is an odd number, as its last digit is 1. It is not a prime number, as it is divisible by 1, 3, 7, 21, and many other factors, including itself. The sum of its digits is 5 + 6 + 4 + 2 + 1 = 18.

In some contexts, 56421 might represent a specific identification number, such as a postal code, a product serial number, or an account identifier. Without further context, its meaning is purely numerical. For example, if 56421 were a postal code, it would designate a particular geographic area for mail delivery. If it were part of a scientific notation or a data entry, it would simply be a value used in a larger calculation or dataset. The significance of 56421 is entirely dependent on the system or context in which it appears.