255365497 has 2 divisors, whose sum is σ = 255365498. Its totient is φ = 255365496.

The previous prime is 255365489. The next prime is 255365543. The reversal of 255365497 is 794563552.

It is an a-pointer prime, because the next prime (255365543) can be obtained adding 255365497 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150896656 + 104468841 = 12284^2 + 10221^2 .

It is a cyclic number.

It is not a de Polignac number, because 255365497 - 2³ = 255365489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255365477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127682748 + 127682749.

It is an arithmetic number, because the mean of its divisors is an integer number (127682749).

Almost surely, 2^255365497 is an apocalyptic number.

It is an amenable number.

255365497 is a deficient number, since it is larger than the sum of its proper divisors (1).

255365497 is an equidigital number, since it uses as much as digits as its factorization.

255365497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 46.

The square root of 255365497 is about 15980.1594798049. The cubic root of 255365497 is about 634.4353978651.

The spelling of 255365497 in words is "two hundred fifty-five million, three hundred sixty-five thousand, four hundred ninety-seven".