50505444 has 120 divisors (see below), whose sum is σ = 148313088. Its totient is φ = 14852160.

The previous prime is 50505431. The next prime is 50505451. The reversal of 50505444 is 44450505.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 131677 + ... + 132059.

Almost surely, 2^50505444 is an apocalyptic number.

50505444 is a gapful number since it is divisible by the number (54) 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 50505444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74156544).

50505444 is an abundant number, since it is smaller than the sum of its proper divisors (97807644).

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

50505444 is a wasteful number, since it uses less digits than its factorization.

50505444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 50505444 is about 7106.7182299568. The cubic root of 50505444 is about 369.6403712858.

Adding to 50505444 its reverse (44450505), we get a palindrome (94955949).

The spelling of 50505444 in words is "fifty million, five hundred five thousand, four hundred forty-four".