255305205 has 12 divisors (see below), whose sum is σ = 442529100. Its totient is φ = 136162752.

The previous prime is 255305189. The next prime is 255305227. The reversal of 255305205 is 502503552.

It can be written as a sum of positive squares in 2 ways, for example, as 157176369 + 98128836 = 12537^2 + 9906^2 .

It is not a de Polignac number, because 255305205 - 2⁴ = 255305189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2836680 + ... + 2836769.

It is an arithmetic number, because the mean of its divisors is an integer number (36877425).

Almost surely, 2^255305205 is an apocalyptic number.

It is an amenable number.

255305205 is a deficient number, since it is larger than the sum of its proper divisors (187223895).

255305205 is a wasteful number, since it uses less digits than its factorization.

255305205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673460 (or 5673457 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 255305205 is about 15978.2729041658. The cubic root of 255305205 is about 634.3854636986.

Adding to 255305205 its reverse (502503552), we get a palindrome (757808757).

The spelling of 255305205 in words is "two hundred fifty-five million, three hundred five thousand, two hundred five".