42550205 has 8 divisors (see below), whose sum is σ = 51260472. Its totient is φ = 33906688.

The previous prime is 42550187. The next prime is 42550231. The reversal of 42550205 is 50205524.

42550205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10310521 + 32239684 = 3211^2 + 5678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42550205 - 2⁶ = 42550141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15272 + ... + 17841.

It is an arithmetic number, because the mean of its divisors is an integer number (6407559).

Almost surely, 2^42550205 is an apocalyptic number.

It is an amenable number.

42550205 is a deficient number, since it is larger than the sum of its proper divisors (8710267).

42550205 is a wasteful number, since it uses less digits than its factorization.

42550205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33375.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 42550205 is about 6523.0518164430. The cubic root of 42550205 is about 349.1139629411.

Adding to 42550205 its reverse (50205524), we get a palindrome (92755729).

The spelling of 42550205 in words is "forty-two million, five hundred fifty thousand, two hundred five".