39575648125 has 30 divisors (see below), whose sum is σ = 53282005238. Its totient is φ = 29211852000.

The previous prime is 39575648059. The next prime is 39575648153. The reversal of 39575648125 is 52184657593.

It can be written as a sum of positive squares in 5 ways, for example, as 23190112089 + 16385536036 = 152283^2 + 128006^2 .

It is a de Polignac number, because none of the positive numbers 2^k-39575648125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 17930772 + ... + 17932978.

Almost surely, 2^39575648125 is an apocalyptic number.

It is an amenable number.

39575648125 is a deficient number, since it is larger than the sum of its proper divisors (13706357113).

39575648125 is an frugal number, since it uses more digits than its factorization.

39575648125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447 (or 2225 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 55.

The spelling of 39575648125 in words is "thirty-nine billion, five hundred seventy-five million, six hundred forty-eight thousand, one hundred twenty-five".