27661055 has 8 divisors (see below), whose sum is σ = 34940400. Its totient is φ = 20964096.

The previous prime is 27661037. The next prime is 27661063. The reversal of 27661055 is 55016672.

It is a happy number.

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 27661055 - 2²⁰ = 26612479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145490 + ... + 145679.

It is an arithmetic number, because the mean of its divisors is an integer number (4367550).

Almost surely, 2^27661055 is an apocalyptic number.

27661055 is a deficient number, since it is larger than the sum of its proper divisors (7279345).

27661055 is a wasteful number, since it uses less digits than its factorization.

27661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291193.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 27661055 is about 5259.3778149131. The cubic root of 27661055 is about 302.4286378576.

The spelling of 27661055 in words is "twenty-seven million, six hundred sixty-one thousand, fifty-five".