52172028 has 36 divisors (see below), whose sum is σ = 132415920. Its totient is φ = 17319936.

The previous prime is 52172017. The next prime is 52172033. The reversal of 52172028 is 82027125.

52172028 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 52171992 and 52172010.

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 in 11 ways as a sum of consecutive naturals, for example, 6433 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (3678220).

Almost surely, 2^52172028 is an apocalyptic number.

It is an amenable number.

52172028 is an abundant number, since it is smaller than the sum of its proper divisors (80243892).

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

52172028 is a wasteful number, since it uses less digits than its factorization.

52172028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5901 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 52172028 is about 7223.0206977414. The cubic root of 52172028 is about 373.6622628997.

The spelling of 52172028 in words is "fifty-two million, one hundred seventy-two thousand, twenty-eight".