255751297 has 2 divisors, whose sum is σ = 255751298. Its totient is φ = 255751296.

The previous prime is 255751259. The next prime is 255751313. The reversal of 255751297 is 792157552.

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., 234212416 + 21538881 = 15304^2 + 4641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255751297 is a prime.

It is not a weakly prime, because it can be changed into another prime (255751207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127875648 + 127875649.

It is an arithmetic number, because the mean of its divisors is an integer number (127875649).

Almost surely, 2^255751297 is an apocalyptic number.

It is an amenable number.

255751297 is a deficient number, since it is larger than the sum of its proper divisors (1).

255751297 is an equidigital number, since it uses as much as digits as its factorization.

255751297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220500, while the sum is 43.

The square root of 255751297 is about 15992.2261427232. The cubic root of 255751297 is about 634.7547336420.

The spelling of 255751297 in words is "two hundred fifty-five million, seven hundred fifty-one thousand, two hundred ninety-seven".