20590529 has 2 divisors, whose sum is σ = 20590530. Its totient is φ = 20590528.

The previous prime is 20590523. The next prime is 20590561. The reversal of 20590529 is 92509502.

It is an a-pointer prime, because the next prime (20590561) can be obtained adding 20590529 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 1098304 = 4415^2 + 1048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20590529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20590495 and 20590504.

It is not a weakly prime, because it can be changed into another prime (20590523) 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, 10295264 + 10295265.

It is an arithmetic number, because the mean of its divisors is an integer number (10295265).

Almost surely, 2^20590529 is an apocalyptic number.

It is an amenable number.

20590529 is a deficient number, since it is larger than the sum of its proper divisors (1).

20590529 is an equidigital number, since it uses as much as digits as its factorization.

20590529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 20590529 is about 4537.6788119037. The cubic root of 20590529 is about 274.0874612014.

The spelling of 20590529 in words is "twenty million, five hundred ninety thousand, five hundred twenty-nine".