5555881 has 4 divisors (see below), whose sum is σ = 5584000. Its totient is φ = 5527764.

The previous prime is 5555873. The next prime is 5555897. The reversal of 5555881 is 1885555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5555881 - 2³ = 5555873 is a prime.

It is a super-2 number, since 2×5555881² = 61735627372322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5555881.

It is not an unprimeable number, because it can be changed into a prime (5555861) 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, 13761 + ... + 14158.

It is an arithmetic number, because the mean of its divisors is an integer number (1396000).

Almost surely, 2^5555881 is an apocalyptic number.

It is an amenable number.

5555881 is a deficient number, since it is larger than the sum of its proper divisors (28119).

5555881 is a wasteful number, since it uses less digits than its factorization.

5555881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28118.

The product of its digits is 40000, while the sum is 37.

The square root of 5555881 is about 2357.0916401362. The cubic root of 5555881 is about 177.1132198262.

The spelling of 5555881 in words is "five million, five hundred fifty-five thousand, eight hundred eighty-one".