550900000 has 144 divisors (see below), whose sum is σ = 1551275712. Its totient is φ = 188640000.

The previous prime is 550899983. The next prime is 550900043. The reversal of 550900000 is 9055.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699607 + ... + 700393.

It is an arithmetic number, because the mean of its divisors is an integer number (10772748).

Almost surely, 2^550900000 is an apocalyptic number.

550900000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775637856).

550900000 is an abundant number, since it is smaller than the sum of its proper divisors (1000375712).

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

550900000 is an frugal number, since it uses more digits than its factorization.

550900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 550900000 is about 23471.2590203423. The cubic root of 550900000 is about 819.7679295682.

Adding to 550900000 its reverse (9055), we get a palindrome (550909055).

The spelling of 550900000 in words is "five hundred fifty million, nine hundred thousand".