211040252 has 6 divisors (see below), whose sum is σ = 369320448. Its totient is φ = 105520124.

The previous prime is 211040251. The next prime is 211040317. The reversal of 211040252 is 252040112.

It is a self number, because there is not a number n which added to its sum of digits gives 211040252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211040251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26380028 + ... + 26380035.

It is an arithmetic number, because the mean of its divisors is an integer number (61553408).

Almost surely, 2^211040252 is an apocalyptic number.

It is an amenable number.

211040252 is a deficient number, since it is larger than the sum of its proper divisors (158280196).

211040252 is a wasteful number, since it uses less digits than its factorization.

211040252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52760067 (or 52760065 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 211040252 is about 14527.2245112410. The cubic root of 211040252 is about 595.3720357654.

Adding to 211040252 its reverse (252040112), we get a palindrome (463080364).

The spelling of 211040252 in words is "two hundred eleven million, forty thousand, two hundred fifty-two".