550563440 has 40 divisors (see below), whose sum is σ = 1462927200. Its totient is φ = 188764416.

The previous prime is 550563439. The next prime is 550563449. The reversal of 550563440 is 44365055.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 550563397 and 550563406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550563449) 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, 491015 + ... + 492134.

It is an arithmetic number, because the mean of its divisors is an integer number (36573180).

Almost surely, 2^550563440 is an apocalyptic number.

It is an amenable number.

550563440 is an abundant number, since it is smaller than the sum of its proper divisors (912363760).

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

550563440 is a wasteful number, since it uses less digits than its factorization.

550563440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983169 (or 983163 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 550563440 is about 23464.0883053231. The cubic root of 550563440 is about 819.6009559501.

The spelling of 550563440 in words is "five hundred fifty million, five hundred sixty-three thousand, four hundred forty".