500005550 has 48 divisors (see below), whose sum is σ = 1024715664. Its totient is φ = 180000000.

The previous prime is 500005511. The next prime is 500005567. The reversal of 500005550 is 55500005.

It is a happy number.

500005550 is a modest number, since divided by 5550 gives 500 as remainder.

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 23 ways as a sum of consecutive naturals, for example, 51050 + ... + 60050.

It is an arithmetic number, because the mean of its divisors is an integer number (21348243).

Almost surely, 2^500005550 is an apocalyptic number.

500005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

500005550 is an abundant number, since it is smaller than the sum of its proper divisors (524710114).

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

500005550 is a wasteful number, since it uses less digits than its factorization.

500005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125 (or 9120 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 500005550 is about 22360.8038764263. The cubic root of 500005550 is about 793.7034626652.

Adding to 500005550 its reverse (55500005), we get a palindrome (555505555).

The spelling of 500005550 in words is "five hundred million, five thousand, five hundred fifty".