550424000 has 112 divisors (see below), whose sum is σ = 1558015680. Its totient is φ = 188697600.

The previous prime is 550423981. The next prime is 550424009. The reversal of 550424000 is 424055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550424009) 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, 51086 + ... + 60914.

Almost surely, 2^550424000 is an apocalyptic number.

550424000 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 550424000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779007840).

550424000 is an abundant number, since it is smaller than the sum of its proper divisors (1007591680).

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

550424000 is an equidigital number, since it uses as much as digits as its factorization.

550424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 550424000 is about 23461.1167679631. The cubic root of 550424000 is about 819.5317572598.

Adding to 550424000 its reverse (424055), we get a palindrome (550848055).

Subtracting from 550424000 its reverse (424055), we obtain a palindrome (549999945).

The spelling of 550424000 in words is "five hundred fifty million, four hundred twenty-four thousand".