53085723 has 4 divisors (see below), whose sum is σ = 70780968. Its totient is φ = 35390480.

The previous prime is 53085667. The next prime is 53085727. The reversal of 53085723 is 32758035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53085723 - 2⁸ = 53085467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53085727) 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 3 ways as a sum of consecutive naturals, for example, 8847618 + ... + 8847623.

It is an arithmetic number, because the mean of its divisors is an integer number (17695242).

Almost surely, 2^53085723 is an apocalyptic number.

53085723 is a deficient number, since it is larger than the sum of its proper divisors (17695245).

53085723 is a wasteful number, since it uses less digits than its factorization.

53085723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17695244.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53085723 is about 7285.9949903908. The cubic root of 53085723 is about 375.8309821120.

The spelling of 53085723 in words is "fifty-three million, eighty-five thousand, seven hundred twenty-three".