5555887 has 4 divisors (see below), whose sum is σ = 5563656. Its totient is φ = 5548120.

The previous prime is 5555873. The next prime is 5555897. The reversal of 5555887 is 7885555.

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 5555887 - 2¹¹ = 5553839 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689 + ... + 4282.

It is an arithmetic number, because the mean of its divisors is an integer number (1390914).

Almost surely, 2^5555887 is an apocalyptic number.

5555887 is a deficient number, since it is larger than the sum of its proper divisors (7769).

5555887 is an equidigital number, since it uses as much as digits as its factorization.

5555887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768.

The product of its digits is 280000, while the sum is 43.

The square root of 5555887 is about 2357.0929128908. The cubic root of 5555887 is about 177.1132835832.

The spelling of 5555887 in words is "five million, five hundred fifty-five thousand, eight hundred eighty-seven".