27655637742425 has 48 divisors (see below), whose sum is σ = 42925236609024. Its totient is φ = 17171193000000.

The previous prime is 27655637742379. The next prime is 27655637742449. The reversal of 27655637742425 is 52424773655672.

It is not a de Polignac number, because 27655637742425 - 2⁶ = 27655637742361 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 47 ways as a sum of consecutive naturals, for example, 28135481 + ... + 29101830.

It is an arithmetic number, because the mean of its divisors is an integer number (894275762688).

Almost surely, 2^{27655637742425} is an apocalyptic number.

27655637742425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27655637742425 is a deficient number, since it is larger than the sum of its proper divisors (15269598866599).

27655637742425 is a wasteful number, since it uses less digits than its factorization.

27655637742425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57237590 (or 57237585 counting only the distinct ones).

The product of its digits is 592704000, while the sum is 65.

The spelling of 27655637742425 in words is "twenty-seven trillion, six hundred fifty-five billion, six hundred thirty-seven million, seven hundred forty-two thousand, four hundred twenty-five".