50111541456 has 160 divisors (see below), whose sum is σ = 137283237120. Its totient is φ = 15718551552.

The previous prime is 50111541449. The next prime is 50111541457. The reversal of 50111541456 is 65414511105.

It is a super-2 number, since 2×50111541456² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50111541457) 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 31 ways as a sum of consecutive naturals, for example, 57139290 + ... + 57140166.

It is an arithmetic number, because the mean of its divisors is an integer number (858020232).

Almost surely, 2^50111541456 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 50111541456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68641618560).

50111541456 is an abundant number, since it is smaller than the sum of its proper divisors (87171695664).

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

50111541456 is a wasteful number, since it uses less digits than its factorization.

50111541456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 50111541456 in words is "fifty billion, one hundred eleven million, five hundred forty-one thousand, four hundred fifty-six".