27551091 has 8 divisors (see below), whose sum is σ = 36875520. Its totient is φ = 18297032.

The previous prime is 27551063. The next prime is 27551093. The reversal of 27551091 is 19015572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27551091 - 2¹³ = 27542899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27551093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16671 + ... + 18248.

It is an arithmetic number, because the mean of its divisors is an integer number (4609440).

Almost surely, 2^27551091 is an apocalyptic number.

27551091 is a deficient number, since it is larger than the sum of its proper divisors (9324429).

27551091 is a wasteful number, since it uses less digits than its factorization.

27551091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35185.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 27551091 is about 5248.9133161065. The cubic root of 27551091 is about 302.0273464704.

The spelling of 27551091 in words is "twenty-seven million, five hundred fifty-one thousand, ninety-one".