52815379 has 4 divisors (see below), whose sum is σ = 55922184. Its totient is φ = 49708576.

The previous prime is 52815361. The next prime is 52815403. The reversal of 52815379 is 97351825.

52815379 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 52815379 - 2⁷ = 52815251 is a prime.

It is a Smith number, since the sum of its digits (40) 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 (52815479) 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, 1553377 + ... + 1553410.

It is an arithmetic number, because the mean of its divisors is an integer number (13980546).

Almost surely, 2^52815379 is an apocalyptic number.

52815379 is a deficient number, since it is larger than the sum of its proper divisors (3106805).

52815379 is a wasteful number, since it uses less digits than its factorization.

52815379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106804.

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

The square root of 52815379 is about 7267.4190053966. The cubic root of 52815379 is about 375.1919112516.

The spelling of 52815379 in words is "fifty-two million, eight hundred fifteen thousand, three hundred seventy-nine".