53085779 has 8 divisors (see below), whose sum is σ = 54423600. Its totient is φ = 51752736.

The previous prime is 53085763. The next prime is 53085797. The reversal of 53085779 is 97758035.

It is a happy number.

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

It is not a de Polignac number, because 53085779 - 2⁴ = 53085763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53085749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33497 + ... + 35045.

It is an arithmetic number, because the mean of its divisors is an integer number (6802950).

Almost surely, 2^53085779 is an apocalyptic number.

53085779 is a deficient number, since it is larger than the sum of its proper divisors (1337821).

53085779 is a wasteful number, since it uses less digits than its factorization.

53085779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 53085779 is about 7285.9988333790. The cubic root of 53085779 is about 375.8311142664.

The spelling of 53085779 in words is "fifty-three million, eighty-five thousand, seven hundred seventy-nine".