255020443 has 4 divisors (see below), whose sum is σ = 259201168. Its totient is φ = 250839720.

The previous prime is 255020419. The next prime is 255020459. The reversal of 255020443 is 344020552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255020443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255021443) 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 3 ways as a sum of consecutive naturals, for example, 2090271 + ... + 2090392.

It is an arithmetic number, because the mean of its divisors is an integer number (64800292).

Almost surely, 2^255020443 is an apocalyptic number.

255020443 is a deficient number, since it is larger than the sum of its proper divisors (4180725).

255020443 is an equidigital number, since it uses as much as digits as its factorization.

255020443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180724.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 255020443 is about 15969.3595050021. The cubic root of 255020443 is about 634.1495159316.

Adding to 255020443 its reverse (344020552), we get a palindrome (599040995).

The spelling of 255020443 in words is "two hundred fifty-five million, twenty thousand, four hundred forty-three".