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255025225 = 5271328623
BaseRepresentation
bin11110011001101…
…10000001001001
3122202212121211201
433030312001021
51010241301400
641150024201
76214451530
oct1714660111
9582777751
10255025225
11120a56254
12714a8061
1340ab1b00
1425c27317
15175c806a
hexf336049

255025225 has 36 divisors (see below), whose sum is σ = 391391616. Its totient is φ = 161403840.

The previous prime is 255025213. The next prime is 255025237. The reversal of 255025225 is 522520552.

It is an interprime number because it is at equal distance from previous prime (255025213) and next prime (255025237).

It is not a de Polignac number, because 255025225 - 211 = 255023177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255025193 and 255025202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25264 + ... + 33886.

Almost surely, 2255025225 is an apocalyptic number.

255025225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255025225 is a deficient number, since it is larger than the sum of its proper divisors (136366391).

255025225 is a wasteful number, since it uses less digits than its factorization.

255025225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8666 (or 8648 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 255025225 is about 15969.5092285267. The cubic root of 255025225 is about 634.1534796453.

Adding to 255025225 its reverse (522520552), we get a palindrome (777545777).

It can be divided in two parts, 255025 and 225, that multiplied together give a square (57380625 = 75752).

The spelling of 255025225 in words is "two hundred fifty-five million, twenty-five thousand, two hundred twenty-five".

Divisors: 1 5 7 13 25 35 65 91 169 175 325 455 845 1183 2275 4225 5915 8623 29575 43115 60361 112099 215575 301805 560495 784693 1457287 1509025 2802475 3923465 7286435 10201009 19617325 36432175 51005045 255025225