85302517 has 2 divisors, whose sum is σ = 85302518. Its totient is φ = 85302516.

The previous prime is 85302491. The next prime is 85302521. The reversal of 85302517 is 71520358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83010321 + 2292196 = 9111^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 85302517 - 2⁷ = 85302389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85302527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42651258 + 42651259.

It is an arithmetic number, because the mean of its divisors is an integer number (42651259).

Almost surely, 2^85302517 is an apocalyptic number.

It is an amenable number.

85302517 is a deficient number, since it is larger than the sum of its proper divisors (1).

85302517 is an equidigital number, since it uses as much as digits as its factorization.

85302517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 85302517 is about 9235.9361734477. The cubic root of 85302517 is about 440.2039636329.

The spelling of 85302517 in words is "eighty-five million, three hundred two thousand, five hundred seventeen".