255017963 has 2 divisors, whose sum is σ = 255017964. Its totient is φ = 255017962.

The previous prime is 255017953. The next prime is 255017989. The reversal of 255017963 is 369710552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255017963 - 2¹² = 255013867 is a prime.

It is a super-2 number, since 2×255017963² = 130068322905338738, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (255017923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127508981 + 127508982.

It is an arithmetic number, because the mean of its divisors is an integer number (127508982).

Almost surely, 2^255017963 is an apocalyptic number.

255017963 is a deficient number, since it is larger than the sum of its proper divisors (1).

255017963 is an equidigital number, since it uses as much as digits as its factorization.

255017963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 255017963 is about 15969.2818561136. The cubic root of 255017963 is about 634.1474602848.

The spelling of 255017963 in words is "two hundred fifty-five million, seventeen thousand, nine hundred sixty-three".