255105605 has 8 divisors (see below), whose sum is σ = 316683000. Its totient is φ = 197046976.

The previous prime is 255105593. The next prime is 255105623. The reversal of 255105605 is 506501552.

255105605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22146436 + 232959169 = 4706^2 + 15263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255105605 - 2¹⁴ = 255089221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879530 + ... + 879819.

It is an arithmetic number, because the mean of its divisors is an integer number (39585375).

Almost surely, 2^255105605 is an apocalyptic number.

It is an amenable number.

255105605 is a deficient number, since it is larger than the sum of its proper divisors (61577395).

255105605 is a wasteful number, since it uses less digits than its factorization.

255105605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759383.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 255105605 is about 15972.0257012065. The cubic root of 255105605 is about 634.2200977642.

The spelling of 255105605 in words is "two hundred fifty-five million, one hundred five thousand, six hundred five".