66825127 has 2 divisors, whose sum is σ = 66825128. Its totient is φ = 66825126.

The previous prime is 66825107. The next prime is 66825133. The reversal of 66825127 is 72152866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66825127 - 2¹¹ = 66823079 is a prime.

It is a super-2 number, since 2×66825127² = 8931195197132258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66825107) 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, 33412563 + 33412564.

It is an arithmetic number, because the mean of its divisors is an integer number (33412564).

Almost surely, 2^66825127 is an apocalyptic number.

66825127 is a deficient number, since it is larger than the sum of its proper divisors (1).

66825127 is an equidigital number, since it uses as much as digits as its factorization.

66825127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 66825127 is about 8174.6637239705. The cubic root of 66825127 is about 405.8011414221.

The spelling of 66825127 in words is "sixty-six million, eight hundred twenty-five thousand, one hundred twenty-seven".