50821168505 has 16 divisors (see below), whose sum is σ = 61802080704. Its totient is φ = 40113783360.

The previous prime is 50821168459. The next prime is 50821168507. The reversal of 50821168505 is 50586112805.

It is not a de Polignac number, because 50821168505 - 2¹² = 50821164409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50821168507) 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 15 ways as a sum of consecutive naturals, for example, 233270 + ... + 395040.

It is an arithmetic number, because the mean of its divisors is an integer number (3862630044).

Almost surely, 2^50821168505 is an apocalyptic number.

It is an amenable number.

50821168505 is a deficient number, since it is larger than the sum of its proper divisors (10980912199).

50821168505 is a wasteful number, since it uses less digits than its factorization.

50821168505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162616.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 50821168505 in words is "fifty billion, eight hundred twenty-one million, one hundred sixty-eight thousand, five hundred five".