550640310 has 64 divisors (see below), whose sum is σ = 1447269120. Its totient is φ = 132970880.

The previous prime is 550640269. The next prime is 550640317. The reversal of 550640310 is 13046055.

It is a super-2 number, since 2×550640310² = 606409501993792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550640317) 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 31 ways as a sum of consecutive naturals, for example, 85669 + ... + 91871.

It is an arithmetic number, because the mean of its divisors is an integer number (22613580).

Almost surely, 2^550640310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550640310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723634560).

550640310 is an abundant number, since it is smaller than the sum of its proper divisors (896628810).

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

550640310 is a wasteful number, since it uses less digits than its factorization.

550640310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 550640310 is about 23465.7262832413. The cubic root of 550640310 is about 819.6390985685.

Adding to 550640310 its reverse (13046055), we get a palindrome (563686365).

The spelling of 550640310 in words is "five hundred fifty million, six hundred forty thousand, three hundred ten".