52304213 has 4 divisors (see below), whose sum is σ = 56327628. Its totient is φ = 48280800.

The previous prime is 52304191. The next prime is 52304293. The reversal of 52304213 is 31240325.

It is a happy number.

52304213 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 19562929 + 32741284 = 4423^2 + 5722^2 .

It is a cyclic number.

It is not a de Polignac number, because 52304213 - 2⁸ = 52303957 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 (52304293) 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, 2011688 + ... + 2011713.

It is an arithmetic number, because the mean of its divisors is an integer number (14081907).

Almost surely, 2^52304213 is an apocalyptic number.

It is an amenable number.

52304213 is a deficient number, since it is larger than the sum of its proper divisors (4023415).

52304213 is a wasteful number, since it uses less digits than its factorization.

52304213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023414.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52304213 is about 7232.1651668086. The cubic root of 52304213 is about 373.9775716482.

Adding to 52304213 its reverse (31240325), we get a palindrome (83544538).

The spelling of 52304213 in words is "fifty-two million, three hundred four thousand, two hundred thirteen".