53211211 has 4 divisors (see below), whose sum is σ = 53599752. Its totient is φ = 52822672.

The previous prime is 53211203. The next prime is 53211227. The reversal of 53211211 is 11211235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53211211 - 2³ = 53211203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53211251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194065 + ... + 194338.

It is an arithmetic number, because the mean of its divisors is an integer number (13399938).

Almost surely, 2^53211211 is an apocalyptic number.

53211211 is a deficient number, since it is larger than the sum of its proper divisors (388541).

53211211 is a wasteful number, since it uses less digits than its factorization.

53211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388540.

The product of its digits is 60, while the sum is 16.

The square root of 53211211 is about 7294.6014969976. The cubic root of 53211211 is about 376.1268881952.

Adding to 53211211 its reverse (11211235), we get a palindrome (64422446).

The spelling of 53211211 in words is "fifty-three million, two hundred eleven thousand, two hundred eleven".