5661189 has 24 divisors (see below), whose sum is σ = 8566272. Its totient is φ = 3598560.

The previous prime is 5661179. The next prime is 5661191. The reversal of 5661189 is 9811665.

5661189 is a `hidden beast` number, since 566 + 11 + 89 = 666.

5661189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5661189 - 2⁸ = 5660933 is a prime.

5661189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28639 + ... + 28835.

It is an arithmetic number, because the mean of its divisors is an integer number (356928).

Almost surely, 2^5661189 is an apocalyptic number.

It is an amenable number.

5661189 is a deficient number, since it is larger than the sum of its proper divisors (2905083).

5661189 is a wasteful number, since it uses less digits than its factorization.

5661189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 334 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 5661189 is about 2379.3253245406. The cubic root of 5661189 is about 178.2252440364.

The spelling of 5661189 in words is "five million, six hundred sixty-one thousand, one hundred eighty-nine".