20552873713 has 4 divisors (see below), whose sum is σ = 20586734080. Its totient is φ = 20519013348.

The previous prime is 20552873687. The next prime is 20552873717. The reversal of 20552873713 is 31737825502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20552873713 - 2⁵ = 20552873681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20552873713.

It is not an unprimeable number, because it can be changed into a prime (20552873717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16929273 + ... + 16930486.

It is an arithmetic number, because the mean of its divisors is an integer number (5146683520).

Almost surely, 2^20552873713 is an apocalyptic number.

It is an amenable number.

20552873713 is a deficient number, since it is larger than the sum of its proper divisors (33860367).

20552873713 is an equidigital number, since it uses as much as digits as its factorization.

20552873713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33860366.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 20552873713 in words is "twenty billion, five hundred fifty-two million, eight hundred seventy-three thousand, seven hundred thirteen".