20352529 has 2 divisors, whose sum is σ = 20352530. Its totient is φ = 20352528.

The previous prime is 20352517. The next prime is 20352547. The reversal of 20352529 is 92525302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14077504 + 6275025 = 3752^2 + 2505^2 .

It is a cyclic number.

It is not a de Polignac number, because 20352529 - 2¹⁷ = 20221457 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20352497 and 20352506.

It is not a weakly prime, because it can be changed into another prime (20352509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176264 + 10176265.

It is an arithmetic number, because the mean of its divisors is an integer number (10176265).

Almost surely, 2^20352529 is an apocalyptic number.

It is an amenable number.

20352529 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352529 is an equidigital number, since it uses as much as digits as its factorization.

20352529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 20352529 is about 4511.3777274797. The cubic root of 20352529 is about 273.0273333785.

The spelling of 20352529 in words is "twenty million, three hundred fifty-two thousand, five hundred twenty-nine".