255201321 has 8 divisors (see below), whose sum is σ = 349465024. Its totient is φ = 165535920.

The previous prime is 255201319. The next prime is 255201337. The reversal of 255201321 is 123102552.

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

It is not a de Polignac number, because 255201321 - 2¹ = 255201319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255201311) 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, 1149445 + ... + 1149666.

It is an arithmetic number, because the mean of its divisors is an integer number (43683128).

Almost surely, 2^255201321 is an apocalyptic number.

It is an amenable number.

255201321 is a deficient number, since it is larger than the sum of its proper divisors (94263703).

255201321 is a wasteful number, since it uses less digits than its factorization.

255201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299151.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 255201321 is about 15975.0217840227. The cubic root of 255201321 is about 634.2994079519.

Adding to 255201321 its reverse (123102552), we get a palindrome (378303873).

The spelling of 255201321 in words is "two hundred fifty-five million, two hundred one thousand, three hundred twenty-one".