55FIVE Game

55 fivefifty-five réunit plus de 400 experts du dital. Des consultants ditaux, des spécialistes du tracking et des médias, des ingénieurs et des data scientists55 is a square pyramidal number. 55 is: . the 10th Fibonacci number [1] and the 10th triangular number, [2] The sum of 55's dits is also 10.; the 5th heptagonal number, [3] the 5th square