A number with 50 digits is typically referred to as a "50-digit number." In terms of numerical representation, it can be classified as a large integer. If you're looking for a specific term related to its mathematical properties, there isn't a unique name beyond simply describing it by its digit count.
50
The value of the tens digit is 50
A multiple of 50 is any number in the 50 times table. So the 3 digit multiples of 50 are: 100, 150, 200 ... 850, 900, 950.
55 52+52 = 50
50
50
The value of the tens digit is 50
A multiple of 50 is any number in the 50 times table. So the 3 digit multiples of 50 are: 100, 150, 200 ... 850, 900, 950.
40
40
50
55 52+52 = 50
100
50
It is 50.
that is 42
48.