255360665 has 16 divisors (see below), whose sum is σ = 368641920. Its totient is φ = 165888000.

The previous prime is 255360647. The next prime is 255360667. The reversal of 255360665 is 566063552.

It is not a de Polignac number, because 255360665 - 2⁶ = 255360601 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255360667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191336 + ... + 192665.

It is an arithmetic number, because the mean of its divisors is an integer number (23040120).

Almost surely, 2^255360665 is an apocalyptic number.

It is an amenable number.

255360665 is a deficient number, since it is larger than the sum of its proper divisors (113281255).

255360665 is a wasteful number, since it uses less digits than its factorization.

255360665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384032.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 255360665 is about 15980.0082916124. The cubic root of 255360665 is about 634.4313962658.

The spelling of 255360665 in words is "two hundred fifty-five million, three hundred sixty thousand, six hundred sixty-five".