549554560 has 64 divisors (see below), whose sum is σ = 1318529520. Its totient is φ = 219027456.

The previous prime is 549554557. The next prime is 549554561. The reversal of 549554560 is 65455945.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549554561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195082 + ... + 197878.

Almost surely, 2^549554560 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 549554560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659264760).

549554560 is an abundant number, since it is smaller than the sum of its proper divisors (768974960).

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

549554560 is a wasteful number, since it uses less digits than its factorization.

549554560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3111 counting only the distinct ones).

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

The square root of 549554560 is about 23442.5800627832. The cubic root of 549554560 is about 819.1000239118.

The spelling of 549554560 in words is "five hundred forty-nine million, five hundred fifty-four thousand, five hundred sixty".