50538167920 has 80 divisors (see below), whose sum is σ = 118432419840. Its totient is φ = 20055540992.

The previous prime is 50538167909. The next prime is 50538167921. The reversal of 50538167920 is 2976183505.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50538167921) 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 15 ways as a sum of consecutive naturals, for example, 7518321 + ... + 7525039.

It is an arithmetic number, because the mean of its divisors is an integer number (1480405248).

Almost surely, 2^50538167920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50538167920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59216209920).

50538167920 is an abundant number, since it is smaller than the sum of its proper divisors (67894251920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50538167920 is a wasteful number, since it uses less digits than its factorization.

50538167920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462 (or 7456 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 50538167920 in words is "fifty billion, five hundred thirty-eight million, one hundred sixty-seven thousand, nine hundred twenty".