255965477 has 2 divisors, whose sum is σ = 255965478. Its totient is φ = 255965476.

The previous prime is 255965417. The next prime is 255965483. The reversal of 255965477 is 774569552.

It is a happy number.

255965477 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., 181333156 + 74632321 = 13466^2 + 8639^2 .

It is a cyclic number.

It is not a de Polignac number, because 255965477 - 2⁸ = 255965221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255965407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127982738 + 127982739.

It is an arithmetic number, because the mean of its divisors is an integer number (127982739).

Almost surely, 2^255965477 is an apocalyptic number.

It is an amenable number.

255965477 is a deficient number, since it is larger than the sum of its proper divisors (1).

255965477 is an equidigital number, since it uses as much as digits as its factorization.

255965477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646000, while the sum is 50.

The square root of 255965477 is about 15998.9211198756. The cubic root of 255965477 is about 634.9318768757.

The spelling of 255965477 in words is "two hundred fifty-five million, nine hundred sixty-five thousand, four hundred seventy-seven".