52845613 has 4 divisors (see below), whose sum is σ = 52861248. Its totient is φ = 52829980.

The previous prime is 52845601. The next prime is 52845623. The reversal of 52845613 is 31654825.

52845613 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52845613 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 (52845623) 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, 403 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (13215312).

Almost surely, 2^52845613 is an apocalyptic number.

It is an amenable number.

52845613 is a deficient number, since it is larger than the sum of its proper divisors (15635).

52845613 is a wasteful number, since it uses less digits than its factorization.

52845613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15634.

The product of its digits is 28800, while the sum is 34.

The square root of 52845613 is about 7269.4988135359. The cubic root of 52845613 is about 375.2634900772.

The spelling of 52845613 in words is "fifty-two million, eight hundred forty-five thousand, six hundred thirteen".