255386797 has 2 divisors, whose sum is σ = 255386798. Its totient is φ = 255386796.

The previous prime is 255386783. The next prime is 255386821. The reversal of 255386797 is 797683552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222278281 + 33108516 = 14909^2 + 5754^2 .

It is a cyclic number.

It is not a de Polignac number, because 255386797 - 2¹¹ = 255384749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255186797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127693398 + 127693399.

It is an arithmetic number, because the mean of its divisors is an integer number (127693399).

Almost surely, 2^255386797 is an apocalyptic number.

It is an amenable number.

255386797 is a deficient number, since it is larger than the sum of its proper divisors (1).

255386797 is an equidigital number, since it uses as much as digits as its factorization.

255386797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The square root of 255386797 is about 15980.8259173298. The cubic root of 255386797 is about 634.4530367637.

The spelling of 255386797 in words is "two hundred fifty-five million, three hundred eighty-six thousand, seven hundred ninety-seven".