52856729423 has 4 divisors (see below), whose sum is σ = 52857370560. Its totient is φ = 52856088288.

The previous prime is 52856729381. The next prime is 52856729437. The reversal of 52856729423 is 32492765825.

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 52856729423 - 2²⁰ = 52855680847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52856729473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174815 + ... + 369152.

It is an arithmetic number, because the mean of its divisors is an integer number (13214342640).

Almost surely, 2^52856729423 is an apocalyptic number.

52856729423 is a deficient number, since it is larger than the sum of its proper divisors (641137).

52856729423 is an equidigital number, since it uses as much as digits as its factorization.

52856729423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641136.

The product of its digits is 7257600, while the sum is 53.

The spelling of 52856729423 in words is "fifty-two billion, eight hundred fifty-six million, seven hundred twenty-nine thousand, four hundred twenty-three".