255360985 has 8 divisors (see below), whose sum is σ = 334290816. Its totient is φ = 185717040.

The previous prime is 255360977. The next prime is 255360991. The reversal of 255360985 is 589063552.

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

It is not a de Polignac number, because 255360985 - 2³ = 255360977 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2321409 + ... + 2321518.

It is an arithmetic number, because the mean of its divisors is an integer number (41786352).

Almost surely, 2^255360985 is an apocalyptic number.

It is an amenable number.

255360985 is a deficient number, since it is larger than the sum of its proper divisors (78929831).

255360985 is a wasteful number, since it uses less digits than its factorization.

255360985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642943.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 255360985 is about 15980.0183041197. The cubic root of 255360985 is about 634.4316612740.

The spelling of 255360985 in words is "two hundred fifty-five million, three hundred sixty thousand, nine hundred eighty-five".