25
25 is an odd composite number. It is composed of a single prime number multiplied by itself.
25 is an odd composite number. It has a total of three divisors.
Prime factorization of 25:
5^{2}
(5 × 5)See below for interesting mathematical facts about the number 25 from the Numbermatics database.
Names of 25
 Cardinal: 25 can be written as Twentyfive.
Scientific notation
 Scientific notation: 2.5 × 10^{1}
Factors of 25
 Number of distinct prime factors ω(n): 1
 Total number of prime factors Ω(n): 2
 Sum of prime factors: 5
Divisors of 25
 Number of divisors d(n): 3
 Complete list of divisors:
 Sum of all divisors σ(n): 31
 Sum of proper divisors (its aliquot sum) s(n): 6
 25 is a deficient number, because the sum of its proper divisors (6) is less than itself. Its deficiency is 19
Bases of 25
 Binary: 11001_{2}
 Hexadecimal: 0x19
 Base36: P
Squares and roots of 25
 25 squared (25^{2}) is 625
 25 cubed (25^{3}) is 15625

25 is a
perfect square number . Itssquare root is 5 
The
cube root of 25 is 2.9240177383
Scales and comparisons
How big is 25? A cube with a volume of 25 cubic inches would be around 0.2 feet tall.
Recreational maths with 25
 25 backwards is 52
 The number of decimal digits it has is: 2
 The sum of 25's digits is 7
 More coming soon!
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The information we have on file for 25 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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