27505252528 has 20 divisors (see below), whose sum is σ = 57390767728. Its totient is φ = 12694731840.

The previous prime is 27505252499. The next prime is 27505252531. The reversal of 27505252528 is 82525250572.

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 3 ways as a sum of consecutive naturals, for example, 66118188 + ... + 66118603.

Almost surely, 2^27505252528 is an apocalyptic number.

It is an amenable number.

27505252528 is an abundant number, since it is smaller than the sum of its proper divisors (29885515200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27505252528 is a wasteful number, since it uses less digits than its factorization.

27505252528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132236812 (or 132236806 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 27505252528 in words is "twenty-seven billion, five hundred five million, two hundred fifty-two thousand, five hundred twenty-eight".