550181780 has 24 divisors (see below), whose sum is σ = 1164484608. Its totient is φ = 218338848.

The previous prime is 550181773. The next prime is 550181783. The reversal of 550181780 is 87181055.

It is a self number, because there is not a number n which added to its sum of digits gives 550181780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550181783) 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, 105764 + ... + 110843.

It is an arithmetic number, because the mean of its divisors is an integer number (48520192).

Almost surely, 2^550181780 is an apocalyptic number.

It is an amenable number.

550181780 is an abundant number, since it is smaller than the sum of its proper divisors (614302828).

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

550181780 is a wasteful number, since it uses less digits than its factorization.

550181780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216743 (or 216741 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 35.

The square root of 550181780 is about 23455.9540415648. The cubic root of 550181780 is about 819.4115250342.

The spelling of 550181780 in words is "five hundred fifty million, one hundred eighty-one thousand, seven hundred eighty".