55543203 has 6 divisors (see below), whose sum is σ = 80229084. Its totient is φ = 37028796.

The previous prime is 55543193. The next prime is 55543211. The reversal of 55543203 is 30234555.

It is not a de Polignac number, because 55543203 - 2⁶ = 55543139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55543273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3085725 + ... + 3085742.

It is an arithmetic number, because the mean of its divisors is an integer number (13371514).

Almost surely, 2^55543203 is an apocalyptic number.

55543203 is a deficient number, since it is larger than the sum of its proper divisors (24685881).

55543203 is a wasteful number, since it uses less digits than its factorization.

55543203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171473 (or 6171470 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55543203 is about 7452.7312443157. The cubic root of 55543203 is about 381.5431317956.

Adding to 55543203 its reverse (30234555), we get a palindrome (85777758).

The spelling of 55543203 in words is "fifty-five million, five hundred forty-three thousand, two hundred three".