550720320 has 224 divisors, whose sum is σ = 1864156800. Its totient is φ = 137355264.

The previous prime is 550720309. The next prime is 550720327. The reversal of 550720320 is 23027055.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550720327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1988022 + ... + 1988298.

Almost surely, 2^550720320 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 550720320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932078400).

550720320 is an abundant number, since it is smaller than the sum of its proper divisors (1313436480).

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

550720320 is a wasteful number, since it uses less digits than its factorization.

550720320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 550720320 is about 23467.4310481569. The cubic root of 550720320 is about 819.6787954735.

Adding to 550720320 its reverse (23027055), we get a palindrome (573747375).

The spelling of 550720320 in words is "five hundred fifty million, seven hundred twenty thousand, three hundred twenty".