20035801 has 2 divisors, whose sum is σ = 20035802. Its totient is φ = 20035800.

The previous prime is 20035789. The next prime is 20035817. The reversal of 20035801 is 10853002.

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., 20034576 + 1225 = 4476^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035801 - 2⁹ = 20035289 is a prime.

It is not a weakly prime, because it can be changed into another prime (20035831) 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, 10017900 + 10017901.

It is an arithmetic number, because the mean of its divisors is an integer number (10017901).

Almost surely, 2^20035801 is an apocalyptic number.

It is an amenable number.

20035801 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035801 is an equidigital number, since it uses as much as digits as its factorization.

20035801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20035801 is about 4476.1368388377. The cubic root of 20035801 is about 271.6036298890.

Adding to 20035801 its reverse (10853002), we get a palindrome (30888803).

The spelling of 20035801 in words is "twenty million, thirty-five thousand, eight hundred one".