5556811 has 4 divisors (see below), whose sum is σ = 5984272. Its totient is φ = 5129352.

The previous prime is 5556791. The next prime is 5556821. The reversal of 5556811 is 1186555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5556811 - 2¹¹ = 5554763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5556821) 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, 213711 + ... + 213736.

It is an arithmetic number, because the mean of its divisors is an integer number (1496068).

Almost surely, 2^5556811 is an apocalyptic number.

5556811 is a deficient number, since it is larger than the sum of its proper divisors (427461).

5556811 is a wasteful number, since it uses less digits than its factorization.

5556811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427460.

The product of its digits is 6000, while the sum is 31.

The square root of 5556811 is about 2357.2889088951. The cubic root of 5556811 is about 177.1231016136.

The spelling of 5556811 in words is "five million, five hundred fifty-six thousand, eight hundred eleven".