505550445150 has 96 divisors (see below), whose sum is σ = 1280900302848. Its totient is φ = 131897750400.

The previous prime is 505550445137. The next prime is 505550445157. The reversal of 505550445150 is 51544055505.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505550445099 and 505550445108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550445157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22414779 + ... + 22437321.

It is an arithmetic number, because the mean of its divisors is an integer number (13342711488).

Almost surely, 2^505550445150 is an apocalyptic number.

505550445150 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 505550445150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640450151424).

505550445150 is an abundant number, since it is smaller than the sum of its proper divisors (775349857698).

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

505550445150 is a wasteful number, since it uses less digits than its factorization.

505550445150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25786 (or 25781 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 505550445150 in words is "five hundred five billion, five hundred fifty million, four hundred forty-five thousand, one hundred fifty".