52666997 has 2 divisors, whose sum is σ = 52666998. Its totient is φ = 52666996.

The previous prime is 52666981. The next prime is 52667029. The reversal of 52666997 is 79966625.

52666997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46321636 + 6345361 = 6806^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 52666997 - 2⁴ = 52666981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52666937) 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, 26333498 + 26333499.

It is an arithmetic number, because the mean of its divisors is an integer number (26333499).

Almost surely, 2^52666997 is an apocalyptic number.

It is an amenable number.

52666997 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666997 is an equidigital number, since it uses as much as digits as its factorization.

52666997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 50.

The square root of 52666997 is about 7257.2031113922. The cubic root of 52666997 is about 374.8402211167.

The spelling of 52666997 in words is "fifty-two million, six hundred sixty-six thousand, nine hundred ninety-seven".