276

is the integer between.

Math features

 * is an even number.
 * 276 is a composite number and an abundant number, adding up to 672, more than 552.
 * The sum of the factors of 276 is 672, which is its palindrome.
 * 276 is a triangular number.
 * 276 is a palindromic number in octal.

276&frac12;

 * $1⁄2$ is half of 553.