27485543 has 2 divisors, whose sum is σ = 27485544. Its totient is φ = 27485542.

The previous prime is 27485537. The next prime is 27485569. The reversal of 27485543 is 34558472.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27485543 - 2¹⁶ = 27420007 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 27485497 and 27485506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27485593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13742771 + 13742772.

It is an arithmetic number, because the mean of its divisors is an integer number (13742772).

Almost surely, 2^27485543 is an apocalyptic number.

27485543 is a deficient number, since it is larger than the sum of its proper divisors (1).

27485543 is an equidigital number, since it uses as much as digits as its factorization.

27485543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

The square root of 27485543 is about 5242.6656387758. The cubic root of 27485543 is about 301.7876341302.

The spelling of 27485543 in words is "twenty-seven million, four hundred eighty-five thousand, five hundred forty-three".