255032321 has 2 divisors, whose sum is σ = 255032322. Its totient is φ = 255032320.

The previous prime is 255032291. The next prime is 255032329. The reversal of 255032321 is 123230552.

255032321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170668096 + 84364225 = 13064^2 + 9185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255032321 is a prime.

It is not a weakly prime, because it can be changed into another prime (255032329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127516160 + 127516161.

It is an arithmetic number, because the mean of its divisors is an integer number (127516161).

Almost surely, 2^255032321 is an apocalyptic number.

It is an amenable number.

255032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

255032321 is an equidigital number, since it uses as much as digits as its factorization.

255032321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255032321 is about 15969.7314003711. The cubic root of 255032321 is about 634.1593613005.

Adding to 255032321 its reverse (123230552), we get a palindrome (378262873).

The spelling of 255032321 in words is "two hundred fifty-five million, thirty-two thousand, three hundred twenty-one".