255544441 has 2 divisors, whose sum is σ = 255544442. Its totient is φ = 255544440.

The previous prime is 255544423. The next prime is 255544469. The reversal of 255544441 is 144445552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255360400 + 184041 = 15980^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 255544441 - 2²³ = 247155833 is a prime.

It is a super-2 number, since 2×255544441² = 130605922652004962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255544397 and 255544406.

It is not a weakly prime, because it can be changed into another prime (255544481) 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 as a sum of consecutive naturals, namely, 127772220 + 127772221.

It is an arithmetic number, because the mean of its divisors is an integer number (127772221).

Almost surely, 2^255544441 is an apocalyptic number.

It is an amenable number.

255544441 is a deficient number, since it is larger than the sum of its proper divisors (1).

255544441 is an equidigital number, since it uses as much as digits as its factorization.

255544441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64000, while the sum is 34.

The square root of 255544441 is about 15985.7574421733. The cubic root of 255544441 is about 634.5835540069.

Adding to 255544441 its reverse (144445552), we get a palindrome (399989993).

The spelling of 255544441 in words is "two hundred fifty-five million, five hundred forty-four thousand, four hundred forty-one".