268559005 has 16 divisors (see below), whose sum is σ = 378612864. Its totient is φ = 180290880.

The previous prime is 268558993. The next prime is 268559009. The reversal of 268559005 is 500955862.

It is a de Polignac number, because none of the positive numbers 2^k-268559005 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 (268559009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187089 + ... + 188518.

It is an arithmetic number, because the mean of its divisors is an integer number (23663304).

Almost surely, 2^268559005 is an apocalyptic number.

It is an amenable number.

268559005 is a deficient number, since it is larger than the sum of its proper divisors (110053859).

268559005 is a wasteful number, since it uses less digits than its factorization.

268559005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375636.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 268559005 is about 16387.7699825205. The cubic root of 268559005 is about 645.1785295919.

The spelling of 268559005 in words is "two hundred sixty-eight million, five hundred fifty-nine thousand, five".