27050561 has 4 divisors (see below), whose sum is σ = 27136212. Its totient is φ = 26964912.

The previous prime is 27050557. The next prime is 27050579. The reversal of 27050561 is 16505072.

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 4431025 + 22619536 = 2105^2 + 4756^2 .

It is a cyclic number.

It is not a de Polignac number, because 27050561 - 2² = 27050557 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27050561.

It is not an unprimeable number, because it can be changed into a prime (27050861) 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, 42350 + ... + 42983.

It is an arithmetic number, because the mean of its divisors is an integer number (6784053).

Almost surely, 2^27050561 is an apocalyptic number.

It is an amenable number.

27050561 is a deficient number, since it is larger than the sum of its proper divisors (85651).

27050561 is an equidigital number, since it uses as much as digits as its factorization.

27050561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85650.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 27050561 is about 5201.0153816346. The cubic root of 27050561 is about 300.1871461930.

The spelling of 27050561 in words is "twenty-seven million, fifty thousand, five hundred sixty-one".