27855241 has 2 divisors, whose sum is σ = 27855242. Its totient is φ = 27855240.

The previous prime is 27855239. The next prime is 27855253. The reversal of 27855241 is 14255872.

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., 27248400 + 606841 = 5220^2 + 779^2 .

It is a cyclic number.

It is not a de Polignac number, because 27855241 - 2¹ = 27855239 is a prime.

Together with 27855239, it forms a pair of twin primes.

It is equal to p_1732939 and since 27855241 and 1732939 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 27855197 and 27855206.

It is not a weakly prime, because it can be changed into another prime (27855221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13927620 + 13927621.

It is an arithmetic number, because the mean of its divisors is an integer number (13927621).

Almost surely, 2^27855241 is an apocalyptic number.

It is an amenable number.

27855241 is a deficient number, since it is larger than the sum of its proper divisors (1).

27855241 is an equidigital number, since it uses as much as digits as its factorization.

27855241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 34.

The square root of 27855241 is about 5277.8064572320. The cubic root of 27855241 is about 303.1346908866.

The spelling of 27855241 in words is "twenty-seven million, eight hundred fifty-five thousand, two hundred forty-one".