52520213 has 2 divisors, whose sum is σ = 52520214. Its totient is φ = 52520212.

The previous prime is 52520179. The next prime is 52520219. The reversal of 52520213 is 31202525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 17497489 = 5918^2 + 4183^2 .

It is a cyclic number.

It is not a de Polignac number, because 52520213 - 2¹² = 52516117 is a prime.

It is equal to p_3143045 and since 52520213 and 3143045 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52520219) 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 as a sum of consecutive naturals, namely, 26260106 + 26260107.

It is an arithmetic number, because the mean of its divisors is an integer number (26260107).

Almost surely, 2^52520213 is an apocalyptic number.

It is an amenable number.

52520213 is a deficient number, since it is larger than the sum of its proper divisors (1).

52520213 is an equidigital number, since it uses as much as digits as its factorization.

52520213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52520213 is about 7247.0830683800. The cubic root of 52520213 is about 374.4916679816.

Adding to 52520213 its reverse (31202525), we get a palindrome (83722738).

The spelling of 52520213 in words is "fifty-two million, five hundred twenty thousand, two hundred thirteen".