255601266 has 16 divisors (see below), whose sum is σ = 511697088. Its totient is φ = 85118000.

The previous prime is 255601249. The next prime is 255601267. The reversal of 255601266 is 662106552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (255601267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13710 + ... + 26441.

It is an arithmetic number, because the mean of its divisors is an integer number (31981068).

Almost surely, 2^255601266 is an apocalyptic number.

255601266 is an abundant number, since it is smaller than the sum of its proper divisors (256095822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255601266 is a wasteful number, since it uses less digits than its factorization.

255601266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41217.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 255601266 is about 15987.5347067645. The cubic root of 255601266 is about 634.6305876236.

The spelling of 255601266 in words is "two hundred fifty-five million, six hundred one thousand, two hundred sixty-six".