5548561 has 4 divisors (see below), whose sum is σ = 5573232. Its totient is φ = 5523892.

The previous prime is 5548559. The next prime is 5548573. The reversal of 5548561 is 1658455.

It is a happy number.

5548561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1658455 = 5 ⋅331691.

It is a cyclic number.

It is not a de Polignac number, because 5548561 - 2¹ = 5548559 is a prime.

It is a Duffinian number.

5548561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5548531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11995 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (1393308).

Almost surely, 2^5548561 is an apocalyptic number.

It is an amenable number.

5548561 is a deficient number, since it is larger than the sum of its proper divisors (24671).

5548561 is a wasteful number, since it uses less digits than its factorization.

5548561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24670.

The product of its digits is 24000, while the sum is 34.

The square root of 5548561 is about 2355.5383673377. The cubic root of 5548561 is about 177.0354020710.

The spelling of 5548561 in words is "five million, five hundred forty-eight thousand, five hundred sixty-one".