5547121441 has 9 divisors (see below), whose sum is σ = 5631718963. Its totient is φ = 5463779440.

The previous prime is 5547121409. The next prime is 5547121453. The reversal of 5547121441 is 1441217455.

The square root of 5547121441 is 74479.

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., 5030923041 + 516198400 = 70929^2 + 22720^2 .

It is not a de Polignac number, because 5547121441 - 2⁵ = 5547121409 is a prime.

It is a Duffinian number.

5547121441 is a Rhonda number in base 10.

Its product of digits (22400) is a multiple of the sum of its prime divisors (1120).

It is a junction number, because it is equal to n+sod(n) for n = 5547121397 and 5547121406.

It is not an unprimeable number, because it can be changed into a prime (5547121241) 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, 5287485 + ... + 5288533.

Almost surely, 2^5547121441 is an apocalyptic number.

5547121441 is the 74479-th square number.

5547121441 is the 37240-th centered octagonal number.

It is an amenable number.

5547121441 is a deficient number, since it is larger than the sum of its proper divisors (84597522).

5547121441 is an frugal number, since it uses more digits than its factorization.

5547121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 1120 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The cubic root of 5547121441 is about 1770.2009029621.

Adding to 5547121441 its reverse (1441217455), we get a palindrome (6988338896).

The spelling of 5547121441 in words is "five billion, five hundred forty-seven million, one hundred twenty-one thousand, four hundred forty-one".