52173828 has 72 divisors (see below), whose sum is σ = 157365600. Its totient is φ = 14905296.

The previous prime is 52173817. The next prime is 52173857. The reversal of 52173828 is 82837125.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52173792 and 52173801.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363 + ... + 10221.

Almost surely, 2^52173828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52173828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78682800).

52173828 is an abundant number, since it is smaller than the sum of its proper divisors (105191772).

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

52173828 is a wasteful number, since it uses less digits than its factorization.

52173828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9886 (or 9871 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 52173828 is about 7223.1452982755. The cubic root of 52173828 is about 373.6665601216. Note that the first 3 decimals are identical.

It can be divided in two parts, 5217 and 3828, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 52173828 in words is "fifty-two million, one hundred seventy-three thousand, eight hundred twenty-eight".