255965497 has 2 divisors, whose sum is σ = 255965498. Its totient is φ = 255965496.

The previous prime is 255965491. The next prime is 255965503. The reversal of 255965497 is 794569552.

It is a balanced prime because it is at equal distance from previous prime (255965491) and next prime (255965503).

It can be written as a sum of positive squares in only one way, i.e., 190743721 + 65221776 = 13811^2 + 8076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255965497 is a prime.

It is not a weakly prime, because it can be changed into another prime (255965491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127982748 + 127982749.

It is an arithmetic number, because the mean of its divisors is an integer number (127982749).

Almost surely, 2^255965497 is an apocalyptic number.

It is an amenable number.

255965497 is a deficient number, since it is larger than the sum of its proper divisors (1).

255965497 is an equidigital number, since it uses as much as digits as its factorization.

255965497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402000, while the sum is 52.

The square root of 255965497 is about 15998.9217449177. The cubic root of 255965497 is about 634.9318934127.

The spelling of 255965497 in words is "two hundred fifty-five million, nine hundred sixty-five thousand, four hundred ninety-seven".