21850550050089 has 4 divisors (see below), whose sum is σ = 29134066733456. Its totient is φ = 14567033366724.

The previous prime is 21850550050081. The next prime is 21850550050123. The reversal of 21850550050089 is 98005005505812.

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 not a de Polignac number, because 21850550050089 - 2³ = 21850550050081 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 (21850550050081) 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, 3641758341679 + ... + 3641758341684.

It is an arithmetic number, because the mean of its divisors is an integer number (7283516683364).

Almost surely, 2^{21850550050089} is an apocalyptic number.

It is an amenable number.

21850550050089 is a deficient number, since it is larger than the sum of its proper divisors (7283516683367).

21850550050089 is an equidigital number, since it uses as much as digits as its factorization.

21850550050089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283516683366.

The product of its (nonzero) digits is 720000, while the sum is 48.

The spelling of 21850550050089 in words is "twenty-one trillion, eight hundred fifty billion, five hundred fifty million, fifty thousand, eighty-nine".