53528305 has 4 divisors (see below), whose sum is σ = 64233972. Its totient is φ = 42822640.

The previous prime is 53528297. The next prime is 53528333. The reversal of 53528305 is 50382535.

53528305 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 2 ways, for example, as 28217344 + 25310961 = 5312^2 + 5031^2 .

It is not a de Polignac number, because 53528305 - 2³ = 53528297 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5352826 + ... + 5352835.

It is an arithmetic number, because the mean of its divisors is an integer number (16058493).

Almost surely, 2^53528305 is an apocalyptic number.

It is an amenable number.

53528305 is a deficient number, since it is larger than the sum of its proper divisors (10705667).

53528305 is a wasteful number, since it uses less digits than its factorization.

53528305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705666.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 53528305 is about 7316.3040532772. The cubic root of 53528305 is about 376.8725421469.

The spelling of 53528305 in words is "fifty-three million, five hundred twenty-eight thousand, three hundred five".