550009959550 has 24 divisors (see below), whose sum is σ = 1029534581016. Its totient is φ = 218602681440.

The previous prime is 550009959497. The next prime is 550009959553. The reversal of 550009959550 is 55959900055.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550009959553) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 35024632 + ... + 35040331.

It is an arithmetic number, because the mean of its divisors is an integer number (42897274209).

Almost surely, 2^550009959550 is an apocalyptic number.

550009959550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550009959550 is a deficient number, since it is larger than the sum of its proper divisors (479524621466).

550009959550 is a wasteful number, since it uses less digits than its factorization.

550009959550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70065132 (or 70065127 counting only the distinct ones).

The product of its (nonzero) digits is 2278125, while the sum is 52.

The spelling of 550009959550 in words is "five hundred fifty billion, nine million, nine hundred fifty-nine thousand, five hundred fifty".