52166657 has 2 divisors, whose sum is σ = 52166658. Its totient is φ = 52166656.

The previous prime is 52166641. The next prime is 52166671. The reversal of 52166657 is 75666125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51825601 + 341056 = 7199^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 52166657 - 2⁴ = 52166641 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 52166657.

It is not a weakly prime, because it can be changed into another prime (52166617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26083328 + 26083329.

It is an arithmetic number, because the mean of its divisors is an integer number (26083329).

It is a Proth number, since it is equal to 199 ⋅ 2¹⁸ + 1 and 199 < 2¹⁸.

Almost surely, 2^52166657 is an apocalyptic number.

It is an amenable number.

52166657 is a deficient number, since it is larger than the sum of its proper divisors (1).

52166657 is an equidigital number, since it uses as much as digits as its factorization.

52166657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 52166657 is about 7222.6488908156. The cubic root of 52166657 is about 373.6494398796.

The spelling of 52166657 in words is "fifty-two million, one hundred sixty-six thousand, six hundred fifty-seven".