52166641 has 2 divisors, whose sum is σ = 52166642. Its totient is φ = 52166640.

The previous prime is 52166629. The next prime is 52166657. The reversal of 52166641 is 14666125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 12110400 = 6329^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 52166641 - 2⁹ = 52166129 is a prime.

It is not a weakly prime, because it can be changed into another prime (52166671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26083320 + 26083321.

It is an arithmetic number, because the mean of its divisors is an integer number (26083321).

Almost surely, 2^52166641 is an apocalyptic number.

It is an amenable number.

52166641 is a deficient number, since it is larger than the sum of its proper divisors (1).

52166641 is an equidigital number, since it uses as much as digits as its factorization.

52166641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 52166641 is about 7222.6477831887. The cubic root of 52166641 is about 373.6494016790.

The spelling of 52166641 in words is "fifty-two million, one hundred sixty-six thousand, six hundred forty-one".