26315017 has 2 divisors, whose sum is σ = 26315018. Its totient is φ = 26315016.

The previous prime is 26314999. The next prime is 26315021. The reversal of 26315017 is 71051362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13719616 + 12595401 = 3704^2 + 3549^2 .

It is a cyclic number.

It is not a de Polignac number, because 26315017 - 2¹¹ = 26312969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26314982 and 26315000.

It is not a weakly prime, because it can be changed into another prime (26315027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13157508 + 13157509.

It is an arithmetic number, because the mean of its divisors is an integer number (13157509).

Almost surely, 2^26315017 is an apocalyptic number.

It is an amenable number.

26315017 is a deficient number, since it is larger than the sum of its proper divisors (1).

26315017 is an equidigital number, since it uses as much as digits as its factorization.

26315017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 26315017 is about 5129.8164684519. The cubic root of 26315017 is about 297.4412642089.

Adding to 26315017 its reverse (71051362), we get a palindrome (97366379).

The spelling of 26315017 in words is "twenty-six million, three hundred fifteen thousand, seventeen".