255581105 has 16 divisors (see below), whose sum is σ = 336525840. Its totient is φ = 185173248.

The previous prime is 255581087. The next prime is 255581113. The reversal of 255581105 is 501185552.

It can be written as a sum of positive squares in 8 ways, for example, as 13965169 + 241615936 = 3737^2 + 15544^2 .

It is not a de Polignac number, because 255581105 - 2⁸ = 255580849 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 33650 + ... + 40539.

It is an arithmetic number, because the mean of its divisors is an integer number (21032865).

Almost surely, 2^255581105 is an apocalyptic number.

It is an amenable number.

255581105 is a deficient number, since it is larger than the sum of its proper divisors (80944735).

255581105 is a wasteful number, since it uses less digits than its factorization.

255581105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74260.

The product of its (nonzero) digits is 10000, while the sum is 32.

The square root of 255581105 is about 15986.9041718527. The cubic root of 255581105 is about 634.6139013165.

The spelling of 255581105 in words is "two hundred fifty-five million, five hundred eighty-one thousand, one hundred five".