550345920 has 56 divisors (see below), whose sum is σ = 1747351344. Its totient is φ = 146758656.

The previous prime is 550345871. The next prime is 550345931. The reversal of 550345920 is 29543055.

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, 285679 + ... + 287598.

Almost surely, 2^550345920 is an apocalyptic number.

It is an amenable number.

550345920 is an abundant number, since it is smaller than the sum of its proper divisors (1197005424).

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

550345920 is a wasteful number, since it uses less digits than its factorization.

550345920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573297 (or 573287 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 550345920 is about 23459.4526790375. The cubic root of 550345920 is about 819.4930040650.

Adding to 550345920 its reverse (29543055), we get a palindrome (579888975).

The spelling of 550345920 in words is "five hundred fifty million, three hundred forty-five thousand, nine hundred twenty".