55556003 has 4 divisors (see below), whose sum is σ = 55590960. Its totient is φ = 55521048.

The previous prime is 55555987. The next prime is 55556027. The reversal of 55556003 is 30065555.

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 55556003 - 2⁴ = 55555987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55556503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14975 + ... + 18312.

It is an arithmetic number, because the mean of its divisors is an integer number (13897740).

Almost surely, 2^55556003 is an apocalyptic number.

55556003 is a deficient number, since it is larger than the sum of its proper divisors (34957).

55556003 is a wasteful number, since it uses less digits than its factorization.

55556003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34956.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 55556003 is about 7453.5899404247. The cubic root of 55556003 is about 381.5724385738.

The spelling of 55556003 in words is "fifty-five million, five hundred fifty-six thousand, three".