549825408 has 192 divisors, whose sum is σ = 1791054720. Its totient is φ = 166510080.

The previous prime is 549825379. The next prime is 549825421. The reversal of 549825408 is 804528945.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341341 + ... + 342947.

It is an arithmetic number, because the mean of its divisors is an integer number (9328410).

Almost surely, 2^549825408 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 549825408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895527360).

549825408 is an abundant number, since it is smaller than the sum of its proper divisors (1241229312).

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

549825408 is a wasteful number, since it uses less digits than its factorization.

549825408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 549825408 is about 23448.3561897204. The cubic root of 549825408 is about 819.2345663108.

The spelling of 549825408 in words is "five hundred forty-nine million, eight hundred twenty-five thousand, four hundred eight".