255197 has 2 divisors, whose sum is σ = 255198. Its totient is φ = 255196.

The previous prime is 255193. The next prime is 255209. The reversal of 255197 is 791552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143641 + 111556 = 379^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 255197 - 2² = 255193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127598 + 127599.

It is an arithmetic number, because the mean of its divisors is an integer number (127599).

2²⁵⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

255197 is a deficient number, since it is larger than the sum of its proper divisors (1).

255197 is an equidigital number, since it uses as much as digits as its factorization.

255197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 29.

The square root of 255197 is about 505.1702683254. The cubic root of 255197 is about 63.4295828003.

The spelling of 255197 in words is "two hundred fifty-five thousand, one hundred ninety-seven".