27053591 has 4 divisors (see below), whose sum is σ = 27332592. Its totient is φ = 26774592.

The previous prime is 27053531. The next prime is 27053617. The reversal of 27053591 is 19535072.

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

It is a cyclic number.

It is not a de Polignac number, because 27053591 - 2¹⁰ = 27052567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27053501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139355 + ... + 139548.

It is an arithmetic number, because the mean of its divisors is an integer number (6833148).

Almost surely, 2^27053591 is an apocalyptic number.

27053591 is a deficient number, since it is larger than the sum of its proper divisors (279001).

27053591 is an equidigital number, since it uses as much as digits as its factorization.

27053591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279000.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 27053591 is about 5201.3066627531. The cubic root of 27053591 is about 300.1983540086.

The spelling of 27053591 in words is "twenty-seven million, fifty-three thousand, five hundred ninety-one".