85030513 has 2 divisors, whose sum is σ = 85030514. Its totient is φ = 85030512.

The previous prime is 85030501. The next prime is 85030531. The reversal of 85030513 is 31503058.

It is a happy number.

Together with next prime (85030531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56972304 + 28058209 = 7548^2 + 5297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85030513 is a prime.

It is not a weakly prime, because it can be changed into another prime (85030553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42515256 + 42515257.

It is an arithmetic number, because the mean of its divisors is an integer number (42515257).

Almost surely, 2^85030513 is an apocalyptic number.

It is an amenable number.

85030513 is a deficient number, since it is larger than the sum of its proper divisors (1).

85030513 is an equidigital number, since it uses as much as digits as its factorization.

85030513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 85030513 is about 9221.1991085758. The cubic root of 85030513 is about 439.7355728682.

The spelling of 85030513 in words is "eighty-five million, thirty thousand, five hundred thirteen".