52168517 has 2 divisors, whose sum is σ = 52168518. Its totient is φ = 52168516.

The previous prime is 52168511. The next prime is 52168553. The reversal of 52168517 is 71586125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40972801 + 11195716 = 6401^2 + 3346^2 .

It is a cyclic number.

It is not a de Polignac number, because 52168517 - 2⁶ = 52168453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52168511) 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, 26084258 + 26084259.

It is an arithmetic number, because the mean of its divisors is an integer number (26084259).

Almost surely, 2^52168517 is an apocalyptic number.

It is an amenable number.

52168517 is a deficient number, since it is larger than the sum of its proper divisors (1).

52168517 is an equidigital number, since it uses as much as digits as its factorization.

52168517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 52168517 is about 7222.7776512918. Note that the first 3 decimals coincide. The cubic root of 52168517 is about 373.6538806453.

The spelling of 52168517 in words is "fifty-two million, one hundred sixty-eight thousand, five hundred seventeen".