52199728 has 20 divisors (see below), whose sum is σ = 115585360. Its totient is φ = 22371264.

The previous prime is 52199723. The next prime is 52199731. The reversal of 52199728 is 82799125.

It is not an unprimeable number, because it can be changed into a prime (52199723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232923 + ... + 233146.

It is an arithmetic number, because the mean of its divisors is an integer number (5779268).

Almost surely, 2^52199728 is an apocalyptic number.

It is an amenable number.

52199728 is an abundant number, since it is smaller than the sum of its proper divisors (63385632).

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

52199728 is a wasteful number, since it uses less digits than its factorization.

52199728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466084 (or 466078 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 52199728 is about 7224.9379236088. The cubic root of 52199728 is about 373.7283814298.

The spelling of 52199728 in words is "fifty-two million, one hundred ninety-nine thousand, seven hundred twenty-eight".