53320686 has 8 divisors (see below), whose sum is σ = 106641384. Its totient is φ = 17773560.

The previous prime is 53320679. The next prime is 53320691. The reversal of 53320686 is 68602335.

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

53320686 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4443385 + ... + 4443396.

It is an arithmetic number, because the mean of its divisors is an integer number (13330173).

Almost surely, 2^53320686 is an apocalyptic number.

53320686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53320686 is a wasteful number, since it uses less digits than its factorization.

53320686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886786.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 53320686 is about 7302.1014783417. The cubic root of 53320686 is about 376.3846552093.

The spelling of 53320686 in words is "fifty-three million, three hundred twenty thousand, six hundred eighty-six".