27500025505 has 16 divisors (see below), whose sum is σ = 33308360640. Its totient is φ = 21795369408.

The previous prime is 27500025491. The next prime is 27500025533. The reversal of 27500025505 is 50552000572.

It is a cyclic number.

It is not a de Polignac number, because 27500025505 - 2¹⁹ = 27499501217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188626 + ... + 300964.

It is an arithmetic number, because the mean of its divisors is an integer number (2081772540).

Almost surely, 2^27500025505 is an apocalyptic number.

It is an amenable number.

27500025505 is a deficient number, since it is larger than the sum of its proper divisors (5808335135).

27500025505 is a wasteful number, since it uses less digits than its factorization.

27500025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112800.

The product of its (nonzero) digits is 17500, while the sum is 31.

The spelling of 27500025505 in words is "twenty-seven billion, five hundred million, twenty-five thousand, five hundred five".