66050539 has 2 divisors, whose sum is σ = 66050540. Its totient is φ = 66050538.

The previous prime is 66050533. The next prime is 66050581. The reversal of 66050539 is 93505066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66050539 - 2⁹ = 66050027 is a prime.

It is not a weakly prime, because it can be changed into another prime (66050533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33025269 + 33025270.

It is an arithmetic number, because the mean of its divisors is an integer number (33025270).

Almost surely, 2^66050539 is an apocalyptic number.

66050539 is a deficient number, since it is larger than the sum of its proper divisors (1).

66050539 is an equidigital number, since it uses as much as digits as its factorization.

66050539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 66050539 is about 8127.1482698423. The cubic root of 66050539 is about 404.2271273752.

The spelling of 66050539 in words is "sixty-six million, fifty thousand, five hundred thirty-nine".