52188515 has 4 divisors (see below), whose sum is σ = 62626224. Its totient is φ = 41750808.

The previous prime is 52188481. The next prime is 52188533. The reversal of 52188515 is 51588125.

52188515 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 52188515 - 2¹⁶ = 52122979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5218847 + ... + 5218856.

It is an arithmetic number, because the mean of its divisors is an integer number (15656556).

Almost surely, 2^52188515 is an apocalyptic number.

52188515 is a deficient number, since it is larger than the sum of its proper divisors (10437709).

52188515 is a wasteful number, since it uses less digits than its factorization.

52188515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437708.

The product of its digits is 16000, while the sum is 35.

The square root of 52188515 is about 7224.1618891052. The cubic root of 52188515 is about 373.7016193719.

The spelling of 52188515 in words is "fifty-two million, one hundred eighty-eight thousand, five hundred fifteen".