55001803 has 4 divisors (see below), whose sum is σ = 55018800. Its totient is φ = 54984808.

The previous prime is 55001761. The next prime is 55001819. The reversal of 55001803 is 30810055.

55001803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55001803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55001833) 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, 1975 + ... + 10672.

It is an arithmetic number, because the mean of its divisors is an integer number (13754700).

Almost surely, 2^55001803 is an apocalyptic number.

55001803 is a deficient number, since it is larger than the sum of its proper divisors (16997).

55001803 is a wasteful number, since it uses less digits than its factorization.

55001803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 55001803 is about 7416.3200443347. The cubic root of 55001803 is about 380.2994016206.

Adding to 55001803 its reverse (30810055), we get a palindrome (85811858).

The spelling of 55001803 in words is "fifty-five million, one thousand, eight hundred three".