505044017 has 2 divisors, whose sum is σ = 505044018. Its totient is φ = 505044016.

The previous prime is 505044013. The next prime is 505044079. The reversal of 505044017 is 710440505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484396081 + 20647936 = 22009^2 + 4544^2 .

It is a cyclic number.

It is not a de Polignac number, because 505044017 - 2² = 505044013 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505044011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252522008 + 252522009.

It is an arithmetic number, because the mean of its divisors is an integer number (252522009).

Almost surely, 2^505044017 is an apocalyptic number.

It is an amenable number.

505044017 is a deficient number, since it is larger than the sum of its proper divisors (1).

505044017 is an equidigital number, since it uses as much as digits as its factorization.

505044017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 505044017 is about 22473.1843983001. The cubic root of 505044017 is about 796.3605603941.

The spelling of 505044017 in words is "five hundred five million, forty-four thousand, seventeen".