549055806289 has 9 divisors (see below), whose sum is σ = 554847163227. Its totient is φ = 543324302784.

The previous prime is 549055806259. The next prime is 549055806311. The reversal of 549055806289 is 982608550945.

The square root of 549055806289 is 740983.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 246547006225 + 302508800064 = 496535^2 + 550008^2 .

It is not a de Polignac number, because 549055806289 - 2²⁵ = 549022251857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549055806259) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 71871532 + ... + 71879170.

It is an arithmetic number, because the mean of its divisors is an integer number (61649684803).

Almost surely, 2^549055806289 is an apocalyptic number.

549055806289 is the 740983-rd square number.

549055806289 is the 370492-nd centered octagonal number.

It is an amenable number.

549055806289 is a deficient number, since it is larger than the sum of its proper divisors (5791356938).

549055806289 is an frugal number, since it uses more digits than its factorization.

549055806289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472 (or 7736 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 61.

The spelling of 549055806289 in words is "five hundred forty-nine billion, fifty-five million, eight hundred six thousand, two hundred eighty-nine".