53211188 has 6 divisors (see below), whose sum is σ = 93119586. Its totient is φ = 26605592.

The previous prime is 53211181. The next prime is 53211203. The reversal of 53211188 is 88111235.

53211188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 6041764 = 6868^2 + 2458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53211188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53211181) 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, 6651395 + ... + 6651402.

It is an arithmetic number, because the mean of its divisors is an integer number (15519931).

Almost surely, 2^53211188 is an apocalyptic number.

It is an amenable number.

53211188 is a deficient number, since it is larger than the sum of its proper divisors (39908398).

53211188 is a wasteful number, since it uses less digits than its factorization.

53211188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302801 (or 13302799 counting only the distinct ones).

The product of its digits is 1920, while the sum is 29.

The square root of 53211188 is about 7294.5999204891. The cubic root of 53211188 is about 376.1268340029.

The spelling of 53211188 in words is "fifty-three million, two hundred eleven thousand, one hundred eighty-eight".