5581982 has 32 divisors (see below), whose sum is σ = 9984000. Its totient is φ = 2339064.

The previous prime is 5581973. The next prime is 5582009. The reversal of 5581982 is 2891855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54143 + ... + 54245.

It is an arithmetic number, because the mean of its divisors is an integer number (312000).

Almost surely, 2^5581982 is an apocalyptic number.

5581982 is a deficient number, since it is larger than the sum of its proper divisors (4402018).

5581982 is a wasteful number, since it uses less digits than its factorization.

5581982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 191 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 5581982 is about 2362.6218487096. The cubic root of 5581982 is about 177.3901403108.

The spelling of 5581982 in words is "five million, five hundred eighty-one thousand, nine hundred eighty-two".