550143944 has 32 divisors (see below), whose sum is σ = 1179955200. Its totient is φ = 235560960.

The previous prime is 550143943. The next prime is 550143947. The reversal of 550143944 is 449341055.

It is not an unprimeable number, because it can be changed into a prime (550143943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67784 + ... + 75464.

It is an arithmetic number, because the mean of its divisors is an integer number (36873600).

Almost surely, 2^550143944 is an apocalyptic number.

It is an amenable number.

550143944 is an abundant number, since it is smaller than the sum of its proper divisors (629811256).

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

550143944 is a wasteful number, since it uses less digits than its factorization.

550143944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8973 (or 8969 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 550143944 is about 23455.1474947398. The cubic root of 550143944 is about 819.3927409606.

Adding to 550143944 its reverse (449341055), we get a palindrome (999484999).

The spelling of 550143944 in words is "five hundred fifty million, one hundred forty-three thousand, nine hundred forty-four".