6538190025 has 12 divisors (see below), whose sum is σ = 10809807632. Its totient is φ = 3487034640.

The previous prime is 6538190011. The next prime is 6538190027. The reversal of 6538190025 is 5200918356.

It is not a de Polignac number, because 6538190025 - 2⁷ = 6538189897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6538190027) by changing a digit.

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, 43587859 + ... + 43588008.

Almost surely, 2^6538190025 is an apocalyptic number.

It is an amenable number.

6538190025 is a deficient number, since it is larger than the sum of its proper divisors (4271617607).

6538190025 is a wasteful number, since it uses less digits than its factorization.

6538190025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87175880 (or 87175875 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 6538190025 is about 80859.0750936467. The cubic root of 6538190025 is about 1869.9034356801.

The spelling of 6538190025 in words is "six billion, five hundred thirty-eight million, one hundred ninety thousand, twenty-five".