50111055500550 has 288 divisors, whose sum is σ = 137473793926560. Its totient is φ = 12070536192000.

The previous prime is 50111055500399. The next prime is 50111055500557. The reversal of 50111055500550 is 5500555011105.

It is a super-2 number, since 2×50111055500550² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50111055500557) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6534232116 + ... + 6534239784.

It is an arithmetic number, because the mean of its divisors is an integer number (477339562245).

Almost surely, 2^{50111055500550} is an apocalyptic number.

50111055500550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 50111055500550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68736896963280).

50111055500550 is an abundant number, since it is smaller than the sum of its proper divisors (87362738426010).

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

50111055500550 is a wasteful number, since it uses less digits than its factorization.

50111055500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960 (or 9944 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 33.

It can be divided in two parts, 50111055 and 500550, that added together give a palindrome (50611605).

The spelling of 50111055500550 in words is "fifty trillion, one hundred eleven billion, fifty-five million, five hundred thousand, five hundred fifty".