55002003 has 16 divisors (see below), whose sum is σ = 84216576. Its totient is φ = 31278240.

The previous prime is 55001981. The next prime is 55002011. The reversal of 55002003 is 30020055.

55002003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55002003 - 2⁵ = 55001971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55002043) 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 15 ways as a sum of consecutive naturals, for example, 1776 + ... + 10637.

It is an arithmetic number, because the mean of its divisors is an integer number (5263536).

Almost surely, 2^55002003 is an apocalyptic number.

55002003 is a deficient number, since it is larger than the sum of its proper divisors (29214573).

55002003 is a wasteful number, since it uses less digits than its factorization.

55002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 55002003 is about 7416.3335280986. Note that the first 3 decimals coincide. The cubic root of 55002003 is about 380.2998625739.

Adding to 55002003 its reverse (30020055), we get a palindrome (85022058).

It can be divided in two parts, 5500 and 2003, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 55002003 in words is "fifty-five million, two thousand, three".