42550203 has 4 divisors (see below), whose sum is σ = 56733608. Its totient is φ = 28366800.

The previous prime is 42550187. The next prime is 42550231. The reversal of 42550203 is 30205524.

42550203 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 not a de Polignac number, because 42550203 - 2⁴ = 42550187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42550203.

It is not an unprimeable number, because it can be changed into a prime (42550243) 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, 7091698 + ... + 7091703.

It is an arithmetic number, because the mean of its divisors is an integer number (14183402).

Almost surely, 2^42550203 is an apocalyptic number.

42550203 is a deficient number, since it is larger than the sum of its proper divisors (14183405).

42550203 is a wasteful number, since it uses less digits than its factorization.

42550203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183404.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42550203 is about 6523.0516631405. The cubic root of 42550203 is about 349.1139574712.

Adding to 42550203 its reverse (30205524), we get a palindrome (72755727).

The spelling of 42550203 in words is "forty-two million, five hundred fifty thousand, two hundred three".