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255085253 = 1971294849
BaseRepresentation
bin11110011010001…
…00101011000101
3122202222200011222
433031010223011
51010300212003
641151210125
76215121533
oct1715045305
9582880158
10255085253
11120a97365
1271516945
1340b03227
1425c41153
15175dac38
hexf344ac5

255085253 has 4 divisors (see below), whose sum is σ = 256380300. Its totient is φ = 253790208.

The previous prime is 255085219. The next prime is 255085273. The reversal of 255085253 is 352580552.

255085253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 181090849 + 73994404 = 13457^2 + 8602^2 .

It is a cyclic number.

It is not a de Polignac number, because 255085253 - 28 = 255084997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255085273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647228 + ... + 647621.

It is an arithmetic number, because the mean of its divisors is an integer number (64095075).

Almost surely, 2255085253 is an apocalyptic number.

It is an amenable number.

255085253 is a deficient number, since it is larger than the sum of its proper divisors (1295047).

255085253 is a wasteful number, since it uses less digits than its factorization.

255085253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295046.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 255085253 is about 15971.3885745730. The cubic root of 255085253 is about 634.2032315587.

The spelling of 255085253 in words is "two hundred fifty-five million, eighty-five thousand, two hundred fifty-three".

Divisors: 1 197 1294849 255085253