205225423 has 8 divisors (see below), whose sum is σ = 224758800. Its totient is φ = 186227328.

The previous prime is 205225387. The next prime is 205225439. The reversal of 205225423 is 324522502.

It is a happy number.

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 205225423 - 2⁹ = 205224911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205225123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133018 + ... + 134551.

It is an arithmetic number, because the mean of its divisors is an integer number (28094850).

Almost surely, 2^205225423 is an apocalyptic number.

205225423 is a deficient number, since it is larger than the sum of its proper divisors (19533377).

205225423 is a wasteful number, since it uses less digits than its factorization.

205225423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267641.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 205225423 is about 14325.6910130018. The cubic root of 205225423 is about 589.8529011815.

Adding to 205225423 its reverse (324522502), we get a palindrome (529747925).

The spelling of 205225423 in words is "two hundred five million, two hundred twenty-five thousand, four hundred twenty-three".