550055050000 has 120 divisors (see below), whose sum is σ = 1337975114112. Its totient is φ = 219048240000.

The previous prime is 550055049983. The next prime is 550055050003. The reversal of 550055050000 is 50550055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (550055050003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11325769 + ... + 11374231.

Almost surely, 2^550055050000 is an apocalyptic number.

550055050000 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 550055050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668987557056).

550055050000 is an abundant number, since it is smaller than the sum of its proper divisors (787920064112).

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

550055050000 is an equidigital number, since it uses as much as digits as its factorization.

550055050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48723 (or 48697 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 550055050000 in words is "five hundred fifty billion, fifty-five million, fifty thousand".