27775027500025 has 12 divisors (see below), whose sum is σ = 37090344415852. Its totient is φ = 20510789538240.

The previous prime is 27775027499963. The next prime is 27775027500041. The reversal of 27775027500025 is 52000572057772.

It can be written as a sum of positive squares in 6 ways, for example, as 17387323321 + 27757640176704 = 131861^2 + 5268552^2 .

It is not a de Polignac number, because 27775027500025 - 2¹³ = 27775027491833 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42730811214 + ... + 42730811863.

Almost surely, 2^{27775027500025} is an apocalyptic number.

27775027500025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27775027500025 is a deficient number, since it is larger than the sum of its proper divisors (9315316915827).

27775027500025 is a wasteful number, since it uses less digits than its factorization.

27775027500025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85461623100 (or 85461623095 counting only the distinct ones).

The product of its (nonzero) digits is 2401000, while the sum is 49.

Adding to 27775027500025 its reverse (52000572057772), we get a palindrome (79775599557797).

The spelling of 27775027500025 in words is "twenty-seven trillion, seven hundred seventy-five billion, twenty-seven million, five hundred thousand, twenty-five".