550457856 has 200 divisors, whose sum is σ = 1771087164. Its totient is φ = 169205760.

The previous prime is 550457851. The next prime is 550457867. The reversal of 550457856 is 658754055.

550457856 is a `hidden beast` number, since 550 + 45 + 7 + 8 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 537497856 + 12960000 = 23184^2 + 3600^2 .

It is not an unprimeable number, because it can be changed into a prime (550457851) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 538626 + ... + 539646.

Almost surely, 2^550457856 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 550457856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (885543582).

550457856 is an abundant number, since it is smaller than the sum of its proper divisors (1220629308).

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

550457856 is a wasteful number, since it uses less digits than its factorization.

550457856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The square root of 550457856 is about 23461.8382911485. The cubic root of 550457856 is about 819.5485597602.

The spelling of 550457856 in words is "five hundred fifty million, four hundred fifty-seven thousand, eight hundred fifty-six".