19648832525 has 12 divisors (see below), whose sum is σ = 27845202912. Its totient is φ = 13473485040.

The previous prime is 19648832461. The next prime is 19648832527. The reversal of 19648832525 is 52523884691.

It is a happy number.

It is not a de Polignac number, because 19648832525 - 2⁶ = 19648832461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19648832527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56139347 + ... + 56139696.

It is an arithmetic number, because the mean of its divisors is an integer number (2320433576).

Almost surely, 2^19648832525 is an apocalyptic number.

It is an amenable number.

19648832525 is a deficient number, since it is larger than the sum of its proper divisors (8196370387).

19648832525 is a wasteful number, since it uses less digits than its factorization.

19648832525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112279060 (or 112279055 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 53.

The spelling of 19648832525 in words is "nineteen billion, six hundred forty-eight million, eight hundred thirty-two thousand, five hundred twenty-five".