52728252 has 12 divisors (see below), whose sum is σ = 123032616. Its totient is φ = 17576080.

The previous prime is 52728251. The next prime is 52728257. The reversal of 52728252 is 25282725.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52728251) 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, 2196999 + ... + 2197022.

It is an arithmetic number, because the mean of its divisors is an integer number (10252718).

Almost surely, 2^52728252 is an apocalyptic number.

It is an amenable number.

52728252 is an abundant number, since it is smaller than the sum of its proper divisors (70304364).

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

52728252 is a wasteful number, since it uses less digits than its factorization.

52728252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394028 (or 4394026 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 52728252 is about 7261.4221747534. The cubic root of 52728252 is about 374.9854856605.

The spelling of 52728252 in words is "fifty-two million, seven hundred twenty-eight thousand, two hundred fifty-two".