27551129 has 2 divisors, whose sum is σ = 27551130. Its totient is φ = 27551128.

The previous prime is 27551113. The next prime is 27551191. The reversal of 27551129 is 92115572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20043529 + 7507600 = 4477^2 + 2740^2 .

It is a cyclic number.

It is not a de Polignac number, because 27551129 - 2⁴ = 27551113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27551095 and 27551104.

It is not a weakly prime, because it can be changed into another prime (27551429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775564 + 13775565.

It is an arithmetic number, because the mean of its divisors is an integer number (13775565).

Almost surely, 2^27551129 is an apocalyptic number.

It is an amenable number.

27551129 is a deficient number, since it is larger than the sum of its proper divisors (1).

27551129 is an equidigital number, since it uses as much as digits as its factorization.

27551129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 32.

The square root of 27551129 is about 5248.9169359021. The cubic root of 27551129 is about 302.0274853279.

The spelling of 27551129 in words is "twenty-seven million, five hundred fifty-one thousand, one hundred twenty-nine".