20352049 has 2 divisors, whose sum is σ = 20352050. Its totient is φ = 20352048.

The previous prime is 20352047. The next prime is 20352061. The reversal of 20352049 is 94025302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14876449 + 5475600 = 3857^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 20352049 - 2¹ = 20352047 is a prime.

Together with 20352047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20352047) 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, 10176024 + 10176025.

It is an arithmetic number, because the mean of its divisors is an integer number (10176025).

Almost surely, 2^20352049 is an apocalyptic number.

It is an amenable number.

20352049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352049 is an equidigital number, since it uses as much as digits as its factorization.

20352049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20352049 is about 4511.3245283398. The cubic root of 20352049 is about 273.0251869761.

The spelling of 20352049 in words is "twenty million, three hundred fifty-two thousand, forty-nine".