500000005550 has 24 divisors (see below), whose sum is σ = 943880613816. Its totient is φ = 197014926240.

The previous prime is 500000005543. The next prime is 500000005553. The reversal of 500000005550 is 55500000005.

It is a happy number.

500000005550 is a modest number, since divided by 5550 gives 500 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000005553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74623517 + ... + 74630216.

It is an arithmetic number, because the mean of its divisors is an integer number (39328358909).

Almost surely, 2^500000005550 is an apocalyptic number.

500000005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

500000005550 is a deficient number, since it is larger than the sum of its proper divisors (443880608266).

500000005550 is a wasteful number, since it uses less digits than its factorization.

500000005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149253812 (or 149253807 counting only the distinct ones).

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

Adding to 500000005550 its reverse (55500000005), we get a palindrome (555500005555).

The spelling of 500000005550 in words is "five hundred billion, five thousand, five hundred fifty".