50505500 has 48 divisors (see below), whose sum is σ = 111724704. Its totient is φ = 19942400.

The previous prime is 50505451. The next prime is 50505509. The reversal of 50505500 is 550505.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40892 + ... + 42108.

It is an arithmetic number, because the mean of its divisors is an integer number (2327598).

Almost surely, 2^50505500 is an apocalyptic number.

50505500 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 50505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55862352).

50505500 is an abundant number, since it is smaller than the sum of its proper divisors (61219204).

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

50505500 is a wasteful number, since it uses less digits than its factorization.

50505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 50505500 is about 7106.7221698896. The cubic root of 50505500 is about 369.6405079038.

The spelling of 50505500 in words is "fifty million, five hundred five thousand, five hundred".