550881408 has 256 divisors, whose sum is σ = 1886330880. Its totient is φ = 138240000.

The previous prime is 550881367. The next prime is 550881449. The reversal of 550881408 is 804188055.

It is an interprime number because it is at equal distance from previous prime (550881367) and next prime (550881449).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916308 + ... + 916908.

It is an arithmetic number, because the mean of its divisors is an integer number (7368480).

Almost surely, 2^550881408 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 550881408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943165440).

550881408 is an abundant number, since it is smaller than the sum of its proper divisors (1335449472).

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

550881408 is a wasteful number, since it uses less digits than its factorization.

550881408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 550881408 is about 23470.8629581445. The cubic root of 550881408 is about 819.7587075093.

The spelling of 550881408 in words is "five hundred fifty million, eight hundred eighty-one thousand, four hundred eight".