52728436 has 6 divisors (see below), whose sum is σ = 92274770. Its totient is φ = 26364216.

The previous prime is 52728391. The next prime is 52728451. The reversal of 52728436 is 63482725.

It can be written as a sum of positive squares in only one way, i.e., 34152336 + 18576100 = 5844^2 + 4310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52728395 and 52728404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6591051 + ... + 6591058.

Almost surely, 2^52728436 is an apocalyptic number.

It is an amenable number.

52728436 is a deficient number, since it is larger than the sum of its proper divisors (39546334).

52728436 is a wasteful number, since it uses less digits than its factorization.

52728436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182113 (or 13182111 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 52728436 is about 7261.4348444367. The cubic root of 52728436 is about 374.9859218419.

The spelling of 52728436 in words is "fifty-two million, seven hundred twenty-eight thousand, four hundred thirty-six".