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255241025 = 5213785357
BaseRepresentation
bin11110011011010…
…10101101000001
3122210021120212022
433031222231001
51010320203100
641154411225
76216340634
oct1715525501
9583246768
10255241025
111210933a6
1271590b15
1340b590c0
1425c81c1b
151761be85
hexf36ab41

255241025 has 12 divisors (see below), whose sum is σ = 340845372. Its totient is φ = 188485440.

The previous prime is 255241013. The next prime is 255241061. The reversal of 255241025 is 520142552.

It can be written as a sum of positive squares in 6 ways, for example, as 295936 + 254945089 = 544^2 + 15967^2 .

It is not a de Polignac number, because 255241025 - 222 = 251046721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255240985 and 255241003.

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, 392354 + ... + 393003.

It is an arithmetic number, because the mean of its divisors is an integer number (28403781).

Almost surely, 2255241025 is an apocalyptic number.

255241025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255241025 is a deficient number, since it is larger than the sum of its proper divisors (85604347).

255241025 is a wasteful number, since it uses less digits than its factorization.

255241025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785380 (or 785375 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255241025 is about 15976.2644257035. The cubic root of 255241025 is about 634.3323008299.

Adding to 255241025 its reverse (520142552), we get a palindrome (775383577).

The spelling of 255241025 in words is "two hundred fifty-five million, two hundred forty-one thousand, twenty-five".

Divisors: 1 5 13 25 65 325 785357 3926785 10209641 19633925 51048205 255241025