5558556 has 12 divisors (see below), whose sum is σ = 12969992. Its totient is φ = 1852848.

The previous prime is 5558551. The next prime is 5558557. The reversal of 5558556 is 6558555.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5558551) 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, 231595 + ... + 231618.

Almost surely, 2^5558556 is an apocalyptic number.

It is an amenable number.

5558556 is an abundant number, since it is smaller than the sum of its proper divisors (7411436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5558556 is a wasteful number, since it uses less digits than its factorization.

5558556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463220 (or 463218 counting only the distinct ones).

The product of its digits is 150000, while the sum is 39.

The square root of 5558556 is about 2357.6590084234. The cubic root of 5558556 is about 177.1416402721.

Subtracting 5558556 from its reverse (6558555), we obtain a palindrome (999999).

The spelling of 5558556 in words is "five million, five hundred fifty-eight thousand, five hundred fifty-six".