53785685 has 8 divisors (see below), whose sum is σ = 64720896. Its totient is φ = 42909840.

The previous prime is 53785681. The next prime is 53785759. The reversal of 53785685 is 58658735.

53785685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53785685 - 2² = 53785681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53785681) 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, 12821 + ... + 16490.

It is an arithmetic number, because the mean of its divisors is an integer number (8090112).

Almost surely, 2^53785685 is an apocalyptic number.

It is an amenable number.

53785685 is a deficient number, since it is larger than the sum of its proper divisors (10935211).

53785685 is a wasteful number, since it uses less digits than its factorization.

53785685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29683.

The product of its digits is 1008000, while the sum is 47.

The square root of 53785685 is about 7333.8724423050. The cubic root of 53785685 is about 377.4756149914.

The spelling of 53785685 in words is "fifty-three million, seven hundred eighty-five thousand, six hundred eighty-five".