549955224 has 256 divisors, whose sum is σ = 1921920000. Its totient is φ = 144789120.

The previous prime is 549955223. The next prime is 549955243. The reversal of 549955224 is 422559945.

549955224 is a `hidden beast` number, since 5 + 4 + 99 + 552 + 2 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 549955224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549955223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 962859 + ... + 963429.

It is an arithmetic number, because the mean of its divisors is an integer number (7507500).

Almost surely, 2^549955224 is an apocalyptic number.

549955224 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549955224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960960000).

549955224 is an abundant number, since it is smaller than the sum of its proper divisors (1371964776).

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

549955224 is a wasteful number, since it uses less digits than its factorization.

549955224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 596 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 549955224 is about 23451.1241521595. The cubic root of 549955224 is about 819.2990361008.

The spelling of 549955224 in words is "five hundred forty-nine million, nine hundred fifty-five thousand, two hundred twenty-four".