211433252 has 6 divisors (see below), whose sum is σ = 370008198. Its totient is φ = 105716624.

The previous prime is 211433251. The next prime is 211433297. The reversal of 211433252 is 252334112.

It can be written as a sum of positive squares in only one way, i.e., 157351936 + 54081316 = 12544^2 + 7354^2 .

It is not an unprimeable number, because it can be changed into a prime (211433251) by changing a digit.

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 as a sum of consecutive naturals, namely, 26429153 + ... + 26429160.

It is an arithmetic number, because the mean of its divisors is an integer number (61668033).

Almost surely, 2^211433252 is an apocalyptic number.

It is an amenable number.

211433252 is a deficient number, since it is larger than the sum of its proper divisors (158574946).

211433252 is a wasteful number, since it uses less digits than its factorization.

211433252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52858317 (or 52858315 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 211433252 is about 14540.7445476495. The cubic root of 211433252 is about 595.7413746596.

Adding to 211433252 its reverse (252334112), we get a palindrome (463767364).

The spelling of 211433252 in words is "two hundred eleven million, four hundred thirty-three thousand, two hundred fifty-two".