205531232 has 24 divisors (see below), whose sum is σ = 405631800. Its totient is φ = 102513664.

The previous prime is 205531231. The next prime is 205531253. The reversal of 205531232 is 232135502.

It is a junction number, because it is equal to n+sod(n) for n = 205531198 and 205531207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205531231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744 + ... + 21072.

It is an arithmetic number, because the mean of its divisors is an integer number (16901325).

Almost surely, 2^205531232 is an apocalyptic number.

It is an amenable number.

205531232 is a deficient number, since it is larger than the sum of its proper divisors (200100568).

205531232 is a wasteful number, since it uses less digits than its factorization.

205531232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758 (or 15750 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 205531232 is about 14336.3604865391. The cubic root of 205531232 is about 590.1457382005.

Adding to 205531232 its reverse (232135502), we get a palindrome (437666734).

The spelling of 205531232 in words is "two hundred five million, five hundred thirty-one thousand, two hundred thirty-two".