53728546 has 4 divisors (see below), whose sum is σ = 80592822. Its totient is φ = 26864272.

The previous prime is 53728541. The next prime is 53728547. The reversal of 53728546 is 64582735.

53728546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27154521 + 26574025 = 5211^2 + 5155^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 53728499 and 53728508.

It is not an unprimeable number, because it can be changed into a prime (53728541) by changing a digit.

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 as a sum of consecutive naturals, namely, 13432135 + ... + 13432138.

Almost surely, 2^53728546 is an apocalyptic number.

53728546 is a deficient number, since it is larger than the sum of its proper divisors (26864276).

53728546 is a wasteful number, since it uses less digits than its factorization.

53728546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26864275.

The product of its digits is 201600, while the sum is 40.

The square root of 53728546 is about 7329.9758526205. The cubic root of 53728546 is about 377.3418977428.

The spelling of 53728546 in words is "fifty-three million, seven hundred twenty-eight thousand, five hundred forty-six".