255066321 has 8 divisors (see below), whose sum is σ = 347324544. Its totient is φ = 166426160.

The previous prime is 255066319. The next prime is 255066323. The reversal of 255066321 is 123660552.

It is an interprime number because it is at equal distance from previous prime (255066319) and next prime (255066323).

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 255066321 - 2¹ = 255066319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255066323) 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 7 ways as a sum of consecutive naturals, for example, 904350 + ... + 904631.

It is an arithmetic number, because the mean of its divisors is an integer number (43415568).

Almost surely, 2^255066321 is an apocalyptic number.

It is an amenable number.

255066321 is a deficient number, since it is larger than the sum of its proper divisors (92258223).

255066321 is a wasteful number, since it uses less digits than its factorization.

255066321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809031.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 255066321 is about 15970.7958787281. The cubic root of 255066321 is about 634.1875413368.

The spelling of 255066321 in words is "two hundred fifty-five million, sixty-six thousand, three hundred twenty-one".