52519513 has 4 divisors (see below), whose sum is σ = 52823268. Its totient is φ = 52215760.

The previous prime is 52519501. The next prime is 52519517. The reversal of 52519513 is 31591525.

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 34609689 + 17909824 = 5883^2 + 4232^2 .

It is a cyclic number.

It is not a de Polignac number, because 52519513 - 2¹³ = 52511321 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52519517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151618 + ... + 151963.

It is an arithmetic number, because the mean of its divisors is an integer number (13205817).

Almost surely, 2^52519513 is an apocalyptic number.

It is an amenable number.

52519513 is a deficient number, since it is larger than the sum of its proper divisors (303755).

52519513 is a wasteful number, since it uses less digits than its factorization.

52519513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303754.

The product of its digits is 6750, while the sum is 31.

The square root of 52519513 is about 7247.0347729261. The cubic root of 52519513 is about 374.4900042073.

The spelling of 52519513 in words is "fifty-two million, five hundred nineteen thousand, five hundred thirteen".