550555550 has 24 divisors (see below), whose sum is σ = 1041395400. Its totient is φ = 216488480.

The previous prime is 550555547. The next prime is 550555613. The reversal of 550555550 is 55555055.

550555550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×550555550² = 606222827271605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550555550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90365 + ... + 96264.

It is an arithmetic number, because the mean of its divisors is an integer number (43391475).

Almost surely, 2^550555550 is an apocalyptic number.

550555550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550555550 is a deficient number, since it is larger than the sum of its proper divisors (490839850).

550555550 is a wasteful number, since it uses less digits than its factorization.

550555550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186700 (or 186695 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The square root of 550555550 is about 23463.9201754524. The cubic root of 550555550 is about 819.5970407595.

The spelling of 550555550 in words is "five hundred fifty million, five hundred fifty-five thousand, five hundred fifty".