27055821 has 8 divisors (see below), whose sum is σ = 38849440. Its totient is φ = 16649712.

The previous prime is 27055813. The next prime is 27055849. The reversal of 27055821 is 12855072.

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

It is not a de Polignac number, because 27055821 - 2³ = 27055813 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 (27051821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346831 + ... + 346908.

It is an arithmetic number, because the mean of its divisors is an integer number (4856180).

Almost surely, 2^27055821 is an apocalyptic number.

It is an amenable number.

27055821 is a deficient number, since it is larger than the sum of its proper divisors (11793619).

27055821 is a wasteful number, since it uses less digits than its factorization.

27055821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693755.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 27055821 is about 5201.5210275457. The cubic root of 27055821 is about 300.2066021303.

The spelling of 27055821 in words is "twenty-seven million, fifty-five thousand, eight hundred twenty-one".