550561056 has 48 divisors (see below), whose sum is σ = 1495065600. Its totient is φ = 177191168.

The previous prime is 550561049. The next prime is 550561087. The reversal of 550561056 is 650165055.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96096 + ... + 101663.

It is an arithmetic number, because the mean of its divisors is an integer number (31147200).

Almost surely, 2^550561056 is an apocalyptic number.

It is an amenable number.

550561056 is an abundant number, since it is smaller than the sum of its proper divisors (944504544).

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

550561056 is a wasteful number, since it uses less digits than its factorization.

550561056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197801 (or 197793 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 550561056 is about 23464.0375042319. The cubic root of 550561056 is about 819.5997729611.

The spelling of 550561056 in words is "five hundred fifty million, five hundred sixty-one thousand, fifty-six".