50804220081 has 4 divisors (see below), whose sum is σ = 67738960112. Its totient is φ = 33869480052.

The previous prime is 50804220067. The next prime is 50804220101. The reversal of 50804220081 is 18002240805.

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 50804220081 - 2²⁷ = 50670002353 is a prime.

It is a super-2 number, since 2×50804220081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50804220041) 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, 8467370011 + ... + 8467370016.

It is an arithmetic number, because the mean of its divisors is an integer number (16934740028).

Almost surely, 2^50804220081 is an apocalyptic number.

It is an amenable number.

50804220081 is a deficient number, since it is larger than the sum of its proper divisors (16934740031).

50804220081 is a wasteful number, since it uses less digits than its factorization.

50804220081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934740030.

The product of its (nonzero) digits is 5120, while the sum is 30.

Adding to 50804220081 its reverse (18002240805), we get a palindrome (68806460886).

The spelling of 50804220081 in words is "fifty billion, eight hundred four million, two hundred twenty thousand, eighty-one".