50005500 has 192 divisors, whose sum is σ = 161336448. Its totient is φ = 11980800.

The previous prime is 50005489. The next prime is 50005507. The reversal of 50005500 is 550005.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

50005500 is a modest number, since divided by 5500 gives 5000 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 50005500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50005507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 943474 + ... + 943526.

It is an arithmetic number, because the mean of its divisors is an integer number (840294).

Almost surely, 2^50005500 is an apocalyptic number.

50005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80668224).

50005500 is an abundant number, since it is smaller than the sum of its proper divisors (111330948).

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

50005500 is a wasteful number, since it uses less digits than its factorization.

50005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 15.

The square root of 50005500 is about 7071.4567099007. The cubic root of 50005500 is about 368.4166574843.

Adding to 50005500 its reverse (550005), we get a palindrome (50555505).

It can be divided in two parts, 50005 and 500, that added together give a palindrome (50505).

The spelling of 50005500 in words is "fifty million, five thousand, five hundred".