52188517 has 4 divisors (see below), whose sum is σ = 53173260. Its totient is φ = 51203776.

The previous prime is 52188481. The next prime is 52188533. The reversal of 52188517 is 71588125.

52188517 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 can be written as a sum of positive squares in 2 ways, for example, as 47527236 + 4661281 = 6894^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 52188517 - 2¹¹ = 52186469 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 (52188547) 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, 492292 + ... + 492397.

It is an arithmetic number, because the mean of its divisors is an integer number (13293315).

Almost surely, 2^52188517 is an apocalyptic number.

It is an amenable number.

52188517 is a deficient number, since it is larger than the sum of its proper divisors (984743).

52188517 is an equidigital number, since it uses as much as digits as its factorization.

52188517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984742.

The product of its digits is 22400, while the sum is 37.

The square root of 52188517 is about 7224.1620275296. The cubic root of 52188517 is about 373.7016241456.

The spelling of 52188517 in words is "fifty-two million, one hundred eighty-eight thousand, five hundred seventeen".