20035185353 has 4 divisors (see below), whose sum is σ = 20107514820. Its totient is φ = 19962855888.

The previous prime is 20035185343. The next prime is 20035185371. The reversal of 20035185353 is 35358153002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12471752329 + 7563433024 = 111677^2 + 86968^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035185353 - 2²⁰ = 20034136777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20035185343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36164318 + ... + 36164871.

It is an arithmetic number, because the mean of its divisors is an integer number (5026878705).

Almost surely, 2^20035185353 is an apocalyptic number.

It is an amenable number.

20035185353 is a deficient number, since it is larger than the sum of its proper divisors (72329467).

20035185353 is an equidigital number, since it uses as much as digits as its factorization.

20035185353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72329466.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 20035185353 in words is "twenty billion, thirty-five million, one hundred eighty-five thousand, three hundred fifty-three".