255667441 has 2 divisors, whose sum is σ = 255667442. Its totient is φ = 255667440.

The previous prime is 255667429. The next prime is 255667469. The reversal of 255667441 is 144766552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164865600 + 90801841 = 12840^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 255667441 - 2²³ = 247278833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255667394 and 255667403.

It is not a weakly prime, because it can be changed into another prime (255667421) 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, 127833720 + 127833721.

It is an arithmetic number, because the mean of its divisors is an integer number (127833721).

Almost surely, 2^255667441 is an apocalyptic number.

It is an amenable number.

255667441 is a deficient number, since it is larger than the sum of its proper divisors (1).

255667441 is an equidigital number, since it uses as much as digits as its factorization.

255667441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 40.

The square root of 255667441 is about 15989.6041539495. The cubic root of 255667441 is about 634.6853513787.

The spelling of 255667441 in words is "two hundred fifty-five million, six hundred sixty-seven thousand, four hundred forty-one".