52839517 has 4 divisors (see below), whose sum is σ = 53563420. Its totient is φ = 52115616.

The previous prime is 52839503. The next prime is 52839541. The reversal of 52839517 is 71593825.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30239001 + 22600516 = 5499^2 + 4754^2 .

It is a cyclic number.

It is not a de Polignac number, because 52839517 - 2¹¹ = 52837469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52839517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52839557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361842 + ... + 361987.

It is an arithmetic number, because the mean of its divisors is an integer number (13390855).

Almost surely, 2^52839517 is an apocalyptic number.

It is an amenable number.

52839517 is a deficient number, since it is larger than the sum of its proper divisors (723903).

52839517 is an equidigital number, since it uses as much as digits as its factorization.

52839517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723902.

The product of its digits is 75600, while the sum is 40.

The square root of 52839517 is about 7269.0795153169. The cubic root of 52839517 is about 375.2490600291.

The spelling of 52839517 in words is "fifty-two million, eight hundred thirty-nine thousand, five hundred seventeen".