53008985 has 8 divisors (see below), whose sum is σ = 64038600. Its totient is φ = 42121984.

The previous prime is 53008979. The next prime is 53008987. The reversal of 53008985 is 58980035.

53008985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1700416 + 51308569 = 1304^2 + 7163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53008985 - 2¹⁴ = 52992601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53008987) 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 in 7 ways as a sum of consecutive naturals, for example, 34832 + ... + 36321.

It is an arithmetic number, because the mean of its divisors is an integer number (8004825).

Almost surely, 2^53008985 is an apocalyptic number.

It is an amenable number.

53008985 is a deficient number, since it is larger than the sum of its proper divisors (11029615).

53008985 is a wasteful number, since it uses less digits than its factorization.

53008985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71307.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 53008985 is about 7280.7269554626. The cubic root of 53008985 is about 375.6498007809.

The spelling of 53008985 in words is "fifty-three million, eight thousand, nine hundred eighty-five".