52543913 has 2 divisors, whose sum is σ = 52543914. Its totient is φ = 52543912.

The previous prime is 52543901. The next prime is 52543943. The reversal of 52543913 is 31934525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52374169 + 169744 = 7237^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 52543913 - 2⁶ = 52543849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52543913.

It is not a weakly prime, because it can be changed into another prime (52543943) 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, 26271956 + 26271957.

It is an arithmetic number, because the mean of its divisors is an integer number (26271957).

Almost surely, 2^52543913 is an apocalyptic number.

It is an amenable number.

52543913 is a deficient number, since it is larger than the sum of its proper divisors (1).

52543913 is an equidigital number, since it uses as much as digits as its factorization.

52543913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 52543913 is about 7248.7180245889. The cubic root of 52543913 is about 374.5479899024.

The spelling of 52543913 in words is "fifty-two million, five hundred forty-three thousand, nine hundred thirteen".