550442140 has 24 divisors (see below), whose sum is σ = 1182812400. Its totient is φ = 215056128.

The previous prime is 550442131. The next prime is 550442143. The reversal of 550442140 is 41244055.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550442143) 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 7 ways as a sum of consecutive naturals, for example, 319165 + ... + 320884.

It is an arithmetic number, because the mean of its divisors is an integer number (49283850).

Almost surely, 2^550442140 is an apocalyptic number.

It is an amenable number.

550442140 is an abundant number, since it is smaller than the sum of its proper divisors (632370260).

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

550442140 is a wasteful number, since it uses less digits than its factorization.

550442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640101 (or 640099 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 550442140 is about 23461.5033618905. The cubic root of 550442140 is about 819.5407601030.

Adding to 550442140 its reverse (41244055), we get a palindrome (591686195).

The spelling of 550442140 in words is "five hundred fifty million, four hundred forty-two thousand, one hundred forty".