53311213 has 2 divisors, whose sum is σ = 53311214. Its totient is φ = 53311212.

The previous prime is 53311211. The next prime is 53311231. The reversal of 53311213 is 31211335.

Together with next prime (53311231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40793769 + 12517444 = 6387^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 53311213 - 2¹ = 53311211 is a prime.

Together with 53311211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53311211) 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, 26655606 + 26655607.

It is an arithmetic number, because the mean of its divisors is an integer number (26655607).

Almost surely, 2^53311213 is an apocalyptic number.

It is an amenable number.

53311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

53311213 is an equidigital number, since it uses as much as digits as its factorization.

53311213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 19.

The square root of 53311213 is about 7301.4528006418. The cubic root of 53311213 is about 376.3623642795.

Adding to 53311213 its reverse (31211335), we get a palindrome (84522548).

The spelling of 53311213 in words is "fifty-three million, three hundred eleven thousand, two hundred thirteen".