550031644 has 6 divisors (see below), whose sum is σ = 962555384. Its totient is φ = 275015820.

The previous prime is 550031641. The next prime is 550031663. The reversal of 550031644 is 446130055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550031641) 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 as a sum of consecutive naturals, namely, 68753952 + ... + 68753959.

Almost surely, 2^550031644 is an apocalyptic number.

It is an amenable number.

550031644 is a deficient number, since it is larger than the sum of its proper divisors (412523740).

550031644 is a wasteful number, since it uses less digits than its factorization.

550031644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137507915 (or 137507913 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 550031644 is about 23452.7534417603. The cubic root of 550031644 is about 819.3369833916.

Adding to 550031644 its reverse (446130055), we get a palindrome (996161699).

The spelling of 550031644 in words is "five hundred fifty million, thirty-one thousand, six hundred forty-four".