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255246025 = 5223942719
BaseRepresentation
bin11110011011010…
…11111011001001
3122210021211201111
433031223323021
51010320333100
641154450321
76216361336
oct1715537311
9583254644
10255246025
11121097131
12715939a1
1340b5b468
1425c8398d
151761d6ba
hexf36bec9

255246025 has 12 divisors (see below), whose sum is σ = 317836800. Its totient is φ = 203337680.

The previous prime is 255246011. The next prime is 255246031. The reversal of 255246025 is 520642552.

It is a happy number.

It is not a de Polignac number, because 255246025 - 219 = 254721737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15385 + ... + 27334.

It is an arithmetic number, because the mean of its divisors is an integer number (26486400).

Almost surely, 2255246025 is an apocalyptic number.

255246025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255246025 is a deficient number, since it is larger than the sum of its proper divisors (62590775).

255246025 is a wasteful number, since it uses less digits than its factorization.

255246025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42968 (or 42963 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 255246025 is about 15976.4209070743. The cubic root of 255246025 is about 634.3364428506.

Adding to 255246025 its reverse (520642552), we get a palindrome (775888577).

The spelling of 255246025 in words is "two hundred fifty-five million, two hundred forty-six thousand, twenty-five".

Divisors: 1 5 25 239 1195 5975 42719 213595 1067975 10209841 51049205 255246025