517487041 has 2 divisors, whose sum is σ = 517487042. Its totient is φ = 517487040.

The previous prime is 517487039. The next prime is 517487077. The reversal of 517487041 is 140784715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259210000 + 258277041 = 16100^2 + 16071^2 .

It is a cyclic number.

It is not a de Polignac number, because 517487041 - 2¹ = 517487039 is a prime.

Together with 517487039, it forms a pair of twin primes.

It is equal to p_27227287 and since 517487041 and 27227287 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (517487011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258743520 + 258743521.

It is an arithmetic number, because the mean of its divisors is an integer number (258743521).

Almost surely, 2^517487041 is an apocalyptic number.

517487041 is the 12160-th centered heptagonal number.

It is an amenable number.

517487041 is a deficient number, since it is larger than the sum of its proper divisors (1).

517487041 is an equidigital number, since it uses as much as digits as its factorization.

517487041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 517487041 is about 22748.3414999863. The cubic root of 517487041 is about 802.8476851880.

The spelling of 517487041 in words is "five hundred seventeen million, four hundred eighty-seven thousand, forty-one".