5581612 has 12 divisors (see below), whose sum is σ = 10083136. Its totient is φ = 2700720.

The previous prime is 5581603. The next prime is 5581613. The reversal of 5581612 is 2161855.

It is not an unprimeable number, because it can be changed into a prime (5581613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22383 + ... + 22630.

Almost surely, 2^5581612 is an apocalyptic number.

It is an amenable number.

5581612 is a deficient number, since it is larger than the sum of its proper divisors (4501524).

5581612 is a wasteful number, since it uses less digits than its factorization.

5581612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45048 (or 45046 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 5581612 is about 2362.5435445722. The cubic root of 5581612 is about 177.3862208068.

The spelling of 5581612 in words is "five million, five hundred eighty-one thousand, six hundred twelve".