53215343 has 2 divisors, whose sum is σ = 53215344. Its totient is φ = 53215342.

The previous prime is 53215303. The next prime is 53215369. The reversal of 53215343 is 34351235.

It is an a-pointer prime, because the next prime (53215369) can be obtained adding 53215343 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53215343 - 2¹⁶ = 53149807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53215303) 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, 26607671 + 26607672.

It is an arithmetic number, because the mean of its divisors is an integer number (26607672).

Almost surely, 2^53215343 is an apocalyptic number.

53215343 is a deficient number, since it is larger than the sum of its proper divisors (1).

53215343 is an equidigital number, since it uses as much as digits as its factorization.

53215343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 26.

The square root of 53215343 is about 7294.8847146477. The cubic root of 53215343 is about 376.1366237130.

Adding to 53215343 its reverse (34351235), we get a palindrome (87566578).

The spelling of 53215343 in words is "fifty-three million, two hundred fifteen thousand, three hundred forty-three".