5550556 has 24 divisors (see below), whose sum is σ = 10710000. Its totient is φ = 2496000.

The previous prime is 5550553. The next prime is 5550557. The reversal of 5550556 is 6550555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3820 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (446250).

Almost surely, 2^5550556 is an apocalyptic number.

It is an amenable number.

5550556 is a deficient number, since it is larger than the sum of its proper divisors (5159444).

5550556 is a wasteful number, since it uses less digits than its factorization.

5550556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 5550556 is about 2355.9617993507. The cubic root of 5550556 is about 177.0566173799.

Subtracting 5550556 from its reverse (6550555), we obtain a palindrome (999999).

The spelling of 5550556 in words is "five million, five hundred fifty thousand, five hundred fifty-six".