42660432025 has 12 divisors (see below), whose sum is σ = 52902471292. Its totient is φ = 34126064640.

The previous prime is 42660432007. The next prime is 42660432041. The reversal of 42660432025 is 52023406624.

It can be written as a sum of positive squares in 6 ways, for example, as 163021824 + 42497410201 = 12768^2 + 206149^2 .

It is not a de Polignac number, because 42660432025 - 2¹⁷ = 42660300953 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 11 ways as a sum of consecutive naturals, for example, 394657 + ... + 490993.

Almost surely, 2^42660432025 is an apocalyptic number.

It is an amenable number.

42660432025 is a deficient number, since it is larger than the sum of its proper divisors (10242039267).

42660432025 is a wasteful number, since it uses less digits than its factorization.

42660432025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114060 (or 114055 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 42660432025 its reverse (52023406624), we get a palindrome (94683838649).

The spelling of 42660432025 in words is "forty-two billion, six hundred sixty million, four hundred thirty-two thousand, twenty-five".