27500552525 has 12 divisors (see below), whose sum is σ = 34110287412. Its totient is φ = 21994247040.

The previous prime is 27500552491. The next prime is 27500552543. The reversal of 27500552525 is 52525500572.

It can be written as a sum of positive squares in 6 ways, for example, as 4748450281 + 22752102244 = 68909^2 + 150838^2 .

It is not a de Polignac number, because 27500552525 - 2¹⁰ = 27500551501 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 11 ways as a sum of consecutive naturals, for example, 63254 + ... + 242903.

It is an arithmetic number, because the mean of its divisors is an integer number (2842523951).

Almost surely, 2^27500552525 is an apocalyptic number.

27500552525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27500552525 is a deficient number, since it is larger than the sum of its proper divisors (6609734887).

27500552525 is a wasteful number, since it uses less digits than its factorization.

27500552525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309760 (or 309755 counting only the distinct ones).

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 27500552525 in words is "twenty-seven billion, five hundred million, five hundred fifty-two thousand, five hundred twenty-five".