Number 55
The number 55 is the 11th Fibonacci number, the 10th triangular number, a palindrome. It has 4 divisors and a digital root of 1. Explore its full properties below, or find words and phrases with a gematria value of 55.
55
Divisors: 4
1, 5, 11, 55
Sum: 72
Prev Triangular: 45
10th Triangular Number
Next Triangular: 66
Prev Fibonacci: 34
11th Fibonacci Number
Next Fibonacci: 89
Prev Palindromic: 44
15th Palindromic Number
Next Palindromic: 66
Mathematical Properties
Golden Number225,851,433,717
Reduced Digit Sum1
Magic Constant83,215
Digital Root1
Octal45(67)
Duodecimal65(47)
Hexadecimal85(37)
Binary110111
55th Values
Prime257
Triangular1,540
Square3,025
Star17,821
Pentagonal4,510
Cube166,375
Tetrahedral29,260
Square Pyramidal56,980
Fibonacci139,583,862,445
Harshad190
Happy Number383