205511226 has 16 divisors (see below), whose sum is σ = 425196000. Its totient is φ = 66141488.

The previous prime is 205511221. The next prime is 205511227. The reversal of 205511226 is 622115502.

It is a happy number.

205511226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205511196 and 205511205.

It is not an unprimeable number, because it can be changed into a prime (205511221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590376 + ... + 590723.

It is an arithmetic number, because the mean of its divisors is an integer number (26574750).

Almost surely, 2^205511226 is an apocalyptic number.

205511226 is an abundant number, since it is smaller than the sum of its proper divisors (219684774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205511226 is a wasteful number, since it uses less digits than its factorization.

205511226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181133.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 205511226 is about 14335.6627331979. The cubic root of 205511226 is about 590.1265897097.

Adding to 205511226 its reverse (622115502), we get a palindrome (827626728).

The spelling of 205511226 in words is "two hundred five million, five hundred eleven thousand, two hundred twenty-six".