53128312 has 8 divisors (see below), whose sum is σ = 99615600. Its totient is φ = 26564152.

The previous prime is 53128301. The next prime is 53128357. The reversal of 53128312 is 21382135.

53128312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 3320512 + ... + 3320527.

It is an arithmetic number, because the mean of its divisors is an integer number (12451950).

Almost surely, 2^53128312 is an apocalyptic number.

It is an amenable number.

53128312 is a deficient number, since it is larger than the sum of its proper divisors (46487288).

53128312 is a wasteful number, since it uses less digits than its factorization.

53128312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641045 (or 6641041 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 53128312 is about 7288.9170663412. The cubic root of 53128312 is about 375.9314610246.

The spelling of 53128312 in words is "fifty-three million, one hundred twenty-eight thousand, three hundred twelve".