550428480 has 448 divisors, whose sum is σ = 2340864000. Its totient is φ = 118941696.

The previous prime is 550428457. The next prime is 550428547. The reversal of 550428480 is 84824055.

550428480 is a `hidden beast` number, since 550 + 4 + 28 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×550428480² = 605943023190220800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1148881 + ... + 1149359.

Almost surely, 2^550428480 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 550428480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170432000).

550428480 is an abundant number, since it is smaller than the sum of its proper divisors (1790435520).

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

550428480 is a wasteful number, since it uses less digits than its factorization.

550428480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 550428480 is about 23461.2122448948. The cubic root of 550428480 is about 819.5339806926.

The spelling of 550428480 in words is "five hundred fifty million, four hundred twenty-eight thousand, four hundred eighty".