20204325539 has 2 divisors, whose sum is σ = 20204325540. Its totient is φ = 20204325538.

The previous prime is 20204325523. The next prime is 20204325541. The reversal of 20204325539 is 93552340202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20204325539 - 2⁴ = 20204325523 is a prime.

Together with 20204325541, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204325499 and 20204325508.

It is not a weakly prime, because it can be changed into another prime (20204325599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102162769 + 10102162770.

It is an arithmetic number, because the mean of its divisors is an integer number (10102162770).

Almost surely, 2^20204325539 is an apocalyptic number.

20204325539 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204325539 is an equidigital number, since it uses as much as digits as its factorization.

20204325539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20204325539 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred thirty-nine".