550005005550 has 576 divisors, whose sum is σ = 1914621456384. Its totient is φ = 102636979200.

The previous prime is 550005005533. The next prime is 550005005573. The reversal of 550005005550 is 55500500055.

It is a super-2 number, since 2×550005005550² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 38881779 + ... + 38895921.

It is an arithmetic number, because the mean of its divisors is an integer number (3323995584).

Almost surely, 2^550005005550 is an apocalyptic number.

550005005550 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 550005005550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957310728192).

550005005550 is an abundant number, since it is smaller than the sum of its proper divisors (1364616450834).

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

550005005550 is a wasteful number, since it uses less digits than its factorization.

550005005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14233 (or 14221 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 550005005550 in words is "five hundred fifty billion, five million, five thousand, five hundred fifty".