550064880 has 120 divisors (see below), whose sum is σ = 1853600112. Its totient is φ = 146184192.

The previous prime is 550064873. The next prime is 550064881. The reversal of 550064880 is 88460055.

It is a happy number.

550064880 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 648 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 (550064881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241507 + ... + 243773.

Almost surely, 2^550064880 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 550064880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926800056).

550064880 is an abundant number, since it is smaller than the sum of its proper divisors (1303535232).

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

550064880 is a wasteful number, since it uses less digits than its factorization.

550064880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 550064880 is about 23453.4620045741. The cubic root of 550064880 is about 819.3534860394.

The spelling of 550064880 in words is "five hundred fifty million, sixty-four thousand, eight hundred eighty".