549505456 has 40 divisors (see below), whose sum is σ = 1116535680. Its totient is φ = 261628416.

The previous prime is 549505417. The next prime is 549505469. The reversal of 549505456 is 654505945.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25761 + ... + 41983.

It is an arithmetic number, because the mean of its divisors is an integer number (27913392).

Almost surely, 2^549505456 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 549505456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558267840).

549505456 is an abundant number, since it is smaller than the sum of its proper divisors (567030224).

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

549505456 is a wasteful number, since it uses less digits than its factorization.

549505456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16333 (or 16327 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The square root of 549505456 is about 23441.5327143939. The cubic root of 549505456 is about 819.0756270102.

It can be divided in two parts, 54950 and 5456, that added together give a palindrome (60406).

The spelling of 549505456 in words is "five hundred forty-nine million, five hundred five thousand, four hundred fifty-six".