20204325535 has 4 divisors (see below), whose sum is σ = 24245190648. Its totient is φ = 16163460424.

The previous prime is 20204325523. The next prime is 20204325539. The reversal of 20204325535 is 53552340202.

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

It is a cyclic number.

It is not a de Polignac number, because 20204325535 - 2²¹ = 20202228383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20204325497 and 20204325506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204325539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020432549 + ... + 2020432558.

It is an arithmetic number, because the mean of its divisors is an integer number (6061297662).

Almost surely, 2^20204325535 is an apocalyptic number.

20204325535 is a deficient number, since it is larger than the sum of its proper divisors (4040865113).

20204325535 is an equidigital number, since it uses as much as digits as its factorization.

20204325535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040865112.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 20204325535 its reverse (53552340202), we get a palindrome (73756665737).

The spelling of 20204325535 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred thirty-five".