1017255287 has 2 divisors, whose sum is σ = 1017255288. Its totient is φ = 1017255286.

The previous prime is 1017255259. The next prime is 1017255373. The reversal of 1017255287 is 7825527101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1017255287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1017255287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1017255887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508627643 + 508627644.

It is an arithmetic number, because the mean of its divisors is an integer number (508627644).

Almost surely, 2^1017255287 is an apocalyptic number.

1017255287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017255287 is an equidigital number, since it uses as much as digits as its factorization.

1017255287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 1017255287 is about 31894.4397505271. The cubic root of 1017255287 is about 1005.7189931011.

The spelling of 1017255287 in words is "one billion, seventeen million, two hundred fifty-five thousand, two hundred eighty-seven".