52666897 has 2 divisors, whose sum is σ = 52666898. Its totient is φ = 52666896.

The previous prime is 52666853. The next prime is 52666921. The reversal of 52666897 is 79866625.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 9054081 = 6604^2 + 3009^2 .

It is a cyclic number.

It is not a de Polignac number, because 52666897 - 2¹¹ = 52664849 is a prime.

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 52666897.

It is not a weakly prime, because it can be changed into another prime (52666997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26333448 + 26333449.

It is an arithmetic number, because the mean of its divisors is an integer number (26333449).

Almost surely, 2^52666897 is an apocalyptic number.

It is an amenable number.

52666897 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666897 is an equidigital number, since it uses as much as digits as its factorization.

52666897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 52666897 is about 7257.1962216823. The cubic root of 52666897 is about 374.8399838774.

The spelling of 52666897 in words is "fifty-two million, six hundred sixty-six thousand, eight hundred ninety-seven".