20392500039 has 4 divisors (see below), whose sum is σ = 27190000056. Its totient is φ = 13595000024.

The previous prime is 20392500031. The next prime is 20392500043. The reversal of 20392500039 is 93000529302.

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 20392500039 - 2³ = 20392500031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20392499982 and 20392500009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20392500031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398750004 + ... + 3398750009.

It is an arithmetic number, because the mean of its divisors is an integer number (6797500014).

Almost surely, 2^20392500039 is an apocalyptic number.

20392500039 is a deficient number, since it is larger than the sum of its proper divisors (6797500017).

20392500039 is an equidigital number, since it uses as much as digits as its factorization.

20392500039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6797500016.

The product of its (nonzero) digits is 14580, while the sum is 33.

The spelling of 20392500039 in words is "twenty billion, three hundred ninety-two million, five hundred thousand, thirty-nine".