751

751 is a prime number.

751 is the largest prime that cannot be expressed as the sum of five or fewer squared composite numbers.

751 is the smallest integer with the following property: the sum of digits of 751 = the sum of digits of the 751st prime = the sum of digits of the 751st semiprime (product of two prime numbers).

The odd powers of 751 end with 751; and its even powers end with 001.

751 Magazine is an online magazine for poetry and short fiction.

Source: Prime Curios!