255888497 has 2 divisors, whose sum is σ = 255888498. Its totient is φ = 255888496.

The previous prime is 255888469. The next prime is 255888517. The reversal of 255888497 is 794888552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233600656 + 22287841 = 15284^2 + 4721^2 .

It is a cyclic number.

It is not a de Polignac number, because 255888497 - 2¹⁶ = 255822961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255888407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127944248 + 127944249.

It is an arithmetic number, because the mean of its divisors is an integer number (127944249).

Almost surely, 2^255888497 is an apocalyptic number.

It is an amenable number.

255888497 is a deficient number, since it is larger than the sum of its proper divisors (1).

255888497 is an equidigital number, since it uses as much as digits as its factorization.

255888497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6451200, while the sum is 56.

The square root of 255888497 is about 15996.5151517448. The cubic root of 255888497 is about 634.8682199104.

The spelling of 255888497 in words is "two hundred fifty-five million, eight hundred eighty-eight thousand, four hundred ninety-seven".