255312443 has 16 divisors (see below), whose sum is σ = 296939520. Its totient is φ = 217742976.

The previous prime is 255312419. The next prime is 255312493. The reversal of 255312443 is 344213552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 255312443 - 2¹⁴ = 255296059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255312493) 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 15 ways as a sum of consecutive naturals, for example, 9755 + ... + 24612.

It is an arithmetic number, because the mean of its divisors is an integer number (18558720).

Almost surely, 2^255312443 is an apocalyptic number.

255312443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

255312443 is a deficient number, since it is larger than the sum of its proper divisors (41627077).

255312443 is a wasteful number, since it uses less digits than its factorization.

255312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34426.

The product of its digits is 14400, while the sum is 29.

The square root of 255312443 is about 15978.4993976281. The cubic root of 255312443 is about 634.3914586653.

Adding to 255312443 its reverse (344213552), we get a palindrome (599525995).

The spelling of 255312443 in words is "two hundred fifty-five million, three hundred twelve thousand, four hundred forty-three".