550661500 has 24 divisors (see below), whose sum is σ = 1202645808. Its totient is φ = 220264400.

The previous prime is 550661471. The next prime is 550661567. The reversal of 550661500 is 5166055.

550661500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550162 + ... + 551161.

It is an arithmetic number, because the mean of its divisors is an integer number (50110242).

Almost surely, 2^550661500 is an apocalyptic number.

550661500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550661500 is an abundant number, since it is smaller than the sum of its proper divisors (651984308).

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

550661500 is a wasteful number, since it uses less digits than its factorization.

550661500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101342 (or 1101330 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 550661500 is about 23466.1777884682. The cubic root of 550661500 is about 819.6496123464.

The spelling of 550661500 in words is "five hundred fifty million, six hundred sixty-one thousand, five hundred".