53212128 has 24 divisors (see below), whose sum is σ = 139682088. Its totient is φ = 17737344.

The previous prime is 53212079. The next prime is 53212139. The reversal of 53212128 is 82121235.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 53212098 and 53212107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277051 + ... + 277242.

It is an arithmetic number, because the mean of its divisors is an integer number (5820087).

Almost surely, 2^53212128 is an apocalyptic number.

It is an amenable number.

53212128 is an abundant number, since it is smaller than the sum of its proper divisors (86469960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53212128 is a wasteful number, since it uses less digits than its factorization.

53212128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554306 (or 554298 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 53212128 is about 7294.6643514284. The cubic root of 53212128 is about 376.1290488074.

The spelling of 53212128 in words is "fifty-three million, two hundred twelve thousand, one hundred twenty-eight".