5548442861 has 4 divisors (see below), whose sum is σ = 5975246172. Its totient is φ = 5121639552.

The previous prime is 5548442827. The next prime is 5548442869. The reversal of 5548442861 is 1682448455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 974625961 + 4573816900 = 31219^2 + 67630^2 .

It is a cyclic number.

It is not a de Polignac number, because 5548442861 - 2¹⁰ = 5548441837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5548442869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213401636 + ... + 213401661.

It is an arithmetic number, because the mean of its divisors is an integer number (1493811543).

Almost surely, 2^5548442861 is an apocalyptic number.

It is an amenable number.

5548442861 is a deficient number, since it is larger than the sum of its proper divisors (426803311).

5548442861 is a wasteful number, since it uses less digits than its factorization.

5548442861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426803310.

The product of its digits is 1228800, while the sum is 47.

The square root of 5548442861 is about 74487.8705629313. The cubic root of 5548442861 is about 1770.3414559307.

The spelling of 5548442861 in words is "five billion, five hundred forty-eight million, four hundred forty-two thousand, eight hundred sixty-one".