66882425 has 6 divisors (see below), whose sum is σ = 82934238. Its totient is φ = 53505920.

The previous prime is 66882419. The next prime is 66882433. The reversal of 66882425 is 52428866.

It can be written as a sum of positive squares in 3 ways, for example, as 1142761 + 65739664 = 1069^2 + 8108^2 .

It is not a de Polignac number, because 66882425 - 2²² = 62688121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1337624 + ... + 1337673.

It is an arithmetic number, because the mean of its divisors is an integer number (13822373).

Almost surely, 2^66882425 is an apocalyptic number.

It is an amenable number.

66882425 is a deficient number, since it is larger than the sum of its proper divisors (16051813).

66882425 is a wasteful number, since it uses less digits than its factorization.

66882425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675307 (or 2675302 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 66882425 is about 8178.1675820443. The cubic root of 66882425 is about 405.9170905791.

The spelling of 66882425 in words is "sixty-six million, eight hundred eighty-two thousand, four hundred twenty-five".