532

532 = 2² x 7 x 19.

532 has a unique representation as a sum of three squares: 532 = 8² + 12² + 18².

532 is 444 in base 11.

532 is a divisor of 11⁶ - 1.

532 is a pentagonal number.

532 is the smallest even number differing by a composite number from both of its prime neighbors.

532 was the first year in which the Anno Domini calendar was used for numbering the years.

Source: Number Gossip