53065213 has 2 divisors, whose sum is σ = 53065214. Its totient is φ = 53065212.

The previous prime is 53065189. The next prime is 53065217. The reversal of 53065213 is 31256035.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49871844 + 3193369 = 7062^2 + 1787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53065213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53065217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26532606 + 26532607.

It is an arithmetic number, because the mean of its divisors is an integer number (26532607).

Almost surely, 2^53065213 is an apocalyptic number.

It is an amenable number.

53065213 is a deficient number, since it is larger than the sum of its proper divisors (1).

53065213 is an equidigital number, since it uses as much as digits as its factorization.

53065213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 53065213 is about 7284.5873596244. The cubic root of 53065213 is about 375.7825743297.

The spelling of 53065213 in words is "fifty-three million, sixty-five thousand, two hundred thirteen".