52828385 has 4 divisors (see below), whose sum is σ = 63394068. Its totient is φ = 42262704.

The previous prime is 52828357. The next prime is 52828403. The reversal of 52828385 is 58382825.

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 31888609 + 20939776 = 5647^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 52828385 - 2²² = 48634081 is a prime.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 5282834 + ... + 5282843.

It is an arithmetic number, because the mean of its divisors is an integer number (15848517).

Almost surely, 2^52828385 is an apocalyptic number.

It is an amenable number.

52828385 is a deficient number, since it is larger than the sum of its proper divisors (10565683).

52828385 is a wasteful number, since it uses less digits than its factorization.

52828385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10565682.

The product of its digits is 153600, while the sum is 41.

The square root of 52828385 is about 7268.3137659295. The cubic root of 52828385 is about 375.2227062308. Note that the first 3 decimals are identical.

The spelling of 52828385 in words is "fifty-two million, eight hundred twenty-eight thousand, three hundred eighty-five".