385006529 has 2 divisors, whose sum is σ = 385006530. Its totient is φ = 385006528.

The previous prime is 385006507. The next prime is 385006603. The reversal of 385006529 is 925600583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247999504 + 137007025 = 15748^2 + 11705^2 .

It is a cyclic number.

It is not a de Polignac number, because 385006529 - 2⁸ = 385006273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 385006492 and 385006501.

It is not a weakly prime, because it can be changed into another prime (385006229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192503264 + 192503265.

It is an arithmetic number, because the mean of its divisors is an integer number (192503265).

Almost surely, 2^385006529 is an apocalyptic number.

It is an amenable number.

385006529 is a deficient number, since it is larger than the sum of its proper divisors (1).

385006529 is an equidigital number, since it uses as much as digits as its factorization.

385006529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 385006529 is about 19621.5832439689. The cubic root of 385006529 is about 727.4827471572.

The spelling of 385006529 in words is "three hundred eighty-five million, six thousand, five hundred twenty-nine".