550137240 has 144 divisors (see below), whose sum is σ = 1822906800. Its totient is φ = 143888256.

The previous prime is 550137239. The next prime is 550137241. The reversal of 550137240 is 42731055.

It is a happy number.

550137240 is a `hidden beast` number, since 550 + 1 + 3 + 72 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (550137239) and next prime (550137241).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550137241) 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 35 ways as a sum of consecutive naturals, for example, 1252941 + ... + 1253379.

It is an arithmetic number, because the mean of its divisors is an integer number (12659075).

Almost surely, 2^550137240 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 550137240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911453400).

550137240 is an abundant number, since it is smaller than the sum of its proper divisors (1272769560).

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

550137240 is a wasteful number, since it uses less digits than its factorization.

550137240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 550137240 is about 23455.0045832441. The cubic root of 550137240 is about 819.3894126006.

Adding to 550137240 its reverse (42731055), we get a palindrome (592868295).

The spelling of 550137240 in words is "five hundred fifty million, one hundred thirty-seven thousand, two hundred forty".