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255043225 = 5244922721
BaseRepresentation
bin11110011001110…
…10011010011001
3122202220112112101
433030322122121
51010242340400
641150243401
76214555153
oct1714723231
9582815471
10255043225
11120a68828
12714b6561
1340aba068
1425c2dad3
15175cd56a
hexf33a699

255043225 has 12 divisors (see below), whose sum is σ = 316971900. Its totient is φ = 203571200.

The previous prime is 255043223. The next prime is 255043237. The reversal of 255043225 is 522340552.

It can be written as a sum of positive squares in 6 ways, for example, as 4897369 + 250145856 = 2213^2 + 15816^2 .

It is not a de Polignac number, because 255043225 - 21 = 255043223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255043193 and 255043202.

It is not an unprimeable number, because it can be changed into a prime (255043223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136 + ... + 22585.

It is an arithmetic number, because the mean of its divisors is an integer number (26414325).

Almost surely, 2255043225 is an apocalyptic number.

255043225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255043225 is a deficient number, since it is larger than the sum of its proper divisors (61928675).

255043225 is a wasteful number, since it uses less digits than its factorization.

255043225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23180 (or 23175 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 255043225 is about 15970.0727925705. The cubic root of 255043225 is about 634.1683990767.

Adding to 255043225 its reverse (522340552), we get a palindrome (777383777).

The spelling of 255043225 in words is "two hundred fifty-five million, forty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 449 2245 11225 22721 113605 568025 10201729 51008645 255043225