32663447725 has 12 divisors (see below), whose sum is σ = 40507374996. Its totient is φ = 26127726080.

The previous prime is 32663447711. The next prime is 32663447749. The reversal of 32663447725 is 52774436623.

It can be written as a sum of positive squares in 6 ways, for example, as 2778027849 + 29885419876 = 52707^2 + 172874^2 .

It is not a de Polignac number, because 32663447725 - 2¹³ = 32663439533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 158109 + ... + 300541.

It is an arithmetic number, because the mean of its divisors is an integer number (3375614583).

Almost surely, 2^32663447725 is an apocalyptic number.

It is an amenable number.

32663447725 is a deficient number, since it is larger than the sum of its proper divisors (7843927271).

32663447725 is a wasteful number, since it uses less digits than its factorization.

32663447725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151616 (or 151611 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 49.

The spelling of 32663447725 in words is "thirty-two billion, six hundred sixty-three million, four hundred forty-seven thousand, seven hundred twenty-five".