550208880 has 240 divisors, whose sum is σ = 2059555680. Its totient is φ = 130701312.

The previous prime is 550208849. The next prime is 550208881. The reversal of 550208880 is 88802055.

550208880 is a `hidden beast` number, since 550 + 20 + 8 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550208881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270427 + ... + 272453.

It is an arithmetic number, because the mean of its divisors is an integer number (8581482).

Almost surely, 2^550208880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550208880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029777840).

550208880 is an abundant number, since it is smaller than the sum of its proper divisors (1509346800).

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

550208880 is a wasteful number, since it uses less digits than its factorization.

550208880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 550208880 is about 23456.5317129366. The cubic root of 550208880 is about 819.4249785802.

The spelling of 550208880 in words is "five hundred fifty million, two hundred eight thousand, eight hundred eighty".