52705643 has 4 divisors (see below), whose sum is σ = 53448048. Its totient is φ = 51963240.

The previous prime is 52705633. The next prime is 52705651. The reversal of 52705643 is 34650725.

52705643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52705643 - 2⁶ = 52705579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52705613) 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 3 ways as a sum of consecutive naturals, for example, 371096 + ... + 371237.

It is an arithmetic number, because the mean of its divisors is an integer number (13362012).

Almost surely, 2^52705643 is an apocalyptic number.

52705643 is a deficient number, since it is larger than the sum of its proper divisors (742405).

52705643 is an equidigital number, since it uses as much as digits as its factorization.

52705643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742404.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 52705643 is about 7259.8652191346. The cubic root of 52705643 is about 374.9318821458.

The spelling of 52705643 in words is "fifty-two million, seven hundred five thousand, six hundred forty-three".