The number "57" is an integer that follows 56 and precedes 58. It is an odd number and can be expressed as the sum of the first eight prime numbers: 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 = 57. In mathematics, it is also known as a semiprime because it can be expressed as the product of two prime numbers, specifically 3 and 19. In popular culture, "57" is famously associated with the Heinz company, which markets its ketchup with the slogan "57 varieties." This number was chosen for marketing purposes, even though the company produces far more than 57 products. The number has since become a recognizable symbol of the brand.