66252377 has 2 divisors, whose sum is σ = 66252378. Its totient is φ = 66252376.

The previous prime is 66252359. The next prime is 66252409. The reversal of 66252377 is 77325266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38204761 + 28047616 = 6181^2 + 5296^2 .

It is a cyclic number.

It is not a de Polignac number, because 66252377 - 2⁶ = 66252313 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 66252377.

It is not a weakly prime, because it can be changed into another prime (66252317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33126188 + 33126189.

It is an arithmetic number, because the mean of its divisors is an integer number (33126189).

Almost surely, 2^66252377 is an apocalyptic number.

It is an amenable number.

66252377 is a deficient number, since it is larger than the sum of its proper divisors (1).

66252377 is an equidigital number, since it uses as much as digits as its factorization.

66252377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 66252377 is about 8139.5563146894. The cubic root of 66252377 is about 404.6384559867.

The spelling of 66252377 in words is "sixty-six million, two hundred fifty-two thousand, three hundred seventy-seven".