Base | Representation |
---|---|
bin | 101111111001… |
… | …0110111011001 |
3 | 1202020211020000 |
4 | 1133302313121 |
5 | 22412041100 |
6 | 2254123213 |
7 | 423306621 |
oct | 137626731 |
9 | 52224200 |
10 | 25112025 |
11 | 131a2044 |
12 | 84b0509 |
13 | 52831b3 |
14 | 3499881 |
15 | 2310900 |
hex | 17f2dd9 |
25112025 has 30 divisors (see below), whose sum is σ = 46519902. Its totient is φ = 13392000.
The previous prime is 25111987. The next prime is 25112027. The reversal of 25112025 is 52021152.
25112025 is nontrivially palindromic in base 8.
It can be written as a sum of positive squares in 3 ways, for example, as 876096 + 24235929 = 936^2 + 4923^2 .
It is not a de Polignac number, because 25112025 - 27 = 25111897 is a prime.
It is a super-2 number, since 2×251120252 = 1261227599201250, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 25111989 and 25112007.
It is not an unprimeable number, because it can be changed into a prime (25112027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4176 + ... + 8225.
Almost surely, 225112025 is an apocalyptic number.
25112025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
25112025 is a deficient number, since it is larger than the sum of its proper divisors (21407877).
25112025 is a wasteful number, since it uses less digits than its factorization.
25112025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12423 (or 12409 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 18.
The square root of 25112025 is about 5011.1899784383. The cubic root of 25112025 is about 292.8378738632.
Adding to 25112025 its reverse (52021152), we get a palindrome (77133177).
The spelling of 25112025 in words is "twenty-five million, one hundred twelve thousand, twenty-five".
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