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255055253 = 757336929
BaseRepresentation
bin11110011001111…
…01010110010101
3122202221011000212
433030331112111
51010243232003
641150415205
76214635215
oct1714752625
9582834025
10255055253
11120a76872
1271501505
1340ac268b
1425c34245
15175d1dd8
hexf33d595

255055253 has 4 divisors (see below), whose sum is σ = 255392940. Its totient is φ = 254717568.

The previous prime is 255055247. The next prime is 255055291. The reversal of 255055253 is 352550552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 221206129 + 33849124 = 14873^2 + 5818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255055253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255055223) 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 3 ways as a sum of consecutive naturals, for example, 167708 + ... + 169221.

It is an arithmetic number, because the mean of its divisors is an integer number (63848235).

Almost surely, 2255055253 is an apocalyptic number.

It is an amenable number.

255055253 is a deficient number, since it is larger than the sum of its proper divisors (337687).

255055253 is an equidigital number, since it uses as much as digits as its factorization.

255055253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337686.

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 255055253 is about 15970.4493675037. The cubic root of 255055253 is about 634.1783681811.

The spelling of 255055253 in words is "two hundred fifty-five million, fifty-five thousand, two hundred fifty-three".

Divisors: 1 757 336929 255055253