52201691 has 2 divisors, whose sum is σ = 52201692. Its totient is φ = 52201690.

The previous prime is 52201673. The next prime is 52201693. The reversal of 52201691 is 19610225.

52201691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52201691 is a prime.

Together with 52201693, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52201691.

It is not a weakly prime, because it can be changed into another prime (52201693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26100845 + 26100846.

It is an arithmetic number, because the mean of its divisors is an integer number (26100846).

Almost surely, 2^52201691 is an apocalyptic number.

52201691 is a deficient number, since it is larger than the sum of its proper divisors (1).

52201691 is an equidigital number, since it uses as much as digits as its factorization.

52201691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 52201691 is about 7225.0737712497. The cubic root of 52201691 is about 373.7330661261.

The spelling of 52201691 in words is "fifty-two million, two hundred one thousand, six hundred ninety-one".