550343920 has 80 divisors (see below), whose sum is σ = 1501921728. Its totient is φ = 183582720.

The previous prime is 550343897. The next prime is 550343921. The reversal of 550343920 is 29343055.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550343921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7440 + ... + 34000.

Almost surely, 2^550343920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550343920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750960864).

550343920 is an abundant number, since it is smaller than the sum of its proper divisors (951577808).

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

550343920 is a wasteful number, since it uses less digits than its factorization.

550343920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26618 (or 26612 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 550343920 is about 23459.4100522583. The cubic root of 550343920 is about 819.4920113633.

Adding to 550343920 its reverse (29343055), we get a palindrome (579686975).

The spelling of 550343920 in words is "five hundred fifty million, three hundred forty-three thousand, nine hundred twenty".