27325504165 has 4 divisors (see below), whose sum is σ = 32790605004. Its totient is φ = 21860403328.

The previous prime is 27325504153. The next prime is 27325504231. The reversal of 27325504165 is 56140552372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8620565409 + 18704938756 = 92847^2 + 136766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27325504165 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 2732550412 + ... + 2732550421.

It is an arithmetic number, because the mean of its divisors is an integer number (8197651251).

Almost surely, 2^27325504165 is an apocalyptic number.

It is an amenable number.

27325504165 is a deficient number, since it is larger than the sum of its proper divisors (5465100839).

27325504165 is an equidigital number, since it uses as much as digits as its factorization.

27325504165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465100838.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 27325504165 in words is "twenty-seven billion, three hundred twenty-five million, five hundred four thousand, one hundred sixty-five".