52015213 has 4 divisors (see below), whose sum is σ = 54276768. Its totient is φ = 49753660.

The previous prime is 52015211. The next prime is 52015247. The reversal of 52015213 is 31251025.

52015213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52015213 - 2¹ = 52015211 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 (52015211) 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, 1130743 + ... + 1130788.

It is an arithmetic number, because the mean of its divisors is an integer number (13569192).

Almost surely, 2^52015213 is an apocalyptic number.

It is an amenable number.

52015213 is a deficient number, since it is larger than the sum of its proper divisors (2261555).

52015213 is a wasteful number, since it uses less digits than its factorization.

52015213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261554.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 52015213 is about 7212.1573055501. The cubic root of 52015213 is about 373.2875112944.

Adding to 52015213 its reverse (31251025), we get a palindrome (83266238).

The spelling of 52015213 in words is "fifty-two million, fifteen thousand, two hundred thirteen".