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24525225 = 3252109001
BaseRepresentation
bin101110110001…
…1100110101001
31201011000021200
41131203212221
522234301400
62233354413
7415314054
oct135434651
951130250
1024525225
111293118a
128268a09
13510908a
143385a9b
152246b00
hex17639a9

24525225 has 18 divisors (see below), whose sum is σ = 43927806. Its totient is φ = 13080000.

The previous prime is 24525223. The next prime is 24525239. The reversal of 24525225 is 52252542.

It can be written as a sum of positive squares in 3 ways, for example, as 1022121 + 23503104 = 1011^2 + 4848^2 .

It is not a de Polignac number, because 24525225 - 21 = 24525223 is a prime.

It is a super-2 number, since 2×245252252 = 1202973322601250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24525223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 54276 + ... + 54725.

Almost surely, 224525225 is an apocalyptic number.

24525225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24525225 is a deficient number, since it is larger than the sum of its proper divisors (19402581).

24525225 is a wasteful number, since it uses less digits than its factorization.

24525225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109017 (or 109009 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 24525225 is about 4952.2949225586. The cubic root of 24525225 is about 290.5389304614.

Adding to 24525225 its reverse (52252542), we get a palindrome (76777767).

The spelling of 24525225 in words is "twenty-four million, five hundred twenty-five thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 109001 327003 545005 981009 1635015 2725025 4905045 8175075 24525225