205533330 has 16 divisors (see below), whose sum is σ = 493280064. Its totient is φ = 54808880.

The previous prime is 205533301. The next prime is 205533331. The reversal of 205533330 is 33335502.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 205533330.

It is not an unprimeable number, because it can be changed into a prime (205533331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425526 + ... + 3425585.

It is an arithmetic number, because the mean of its divisors is an integer number (30830004).

Almost surely, 2^205533330 is an apocalyptic number.

205533330 is an abundant number, since it is smaller than the sum of its proper divisors (287746734).

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

205533330 is a wasteful number, since it uses less digits than its factorization.

205533330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851121.

The product of its (nonzero) digits is 4050, while the sum is 24.

The square root of 205533330 is about 14336.4336569455. The cubic root of 205533330 is about 590.1477462028.

Adding to 205533330 its reverse (33335502), we get a palindrome (238868832).

The spelling of 205533330 in words is "two hundred five million, five hundred thirty-three thousand, three hundred thirty".