85540027 has 2 divisors, whose sum is σ = 85540028. Its totient is φ = 85540026.

The previous prime is 85540009. The next prime is 85540087. The reversal of 85540027 is 72004558.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85540027 is a prime.

It is not a weakly prime, because it can be changed into another prime (85540087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42770013 + 42770014.

It is an arithmetic number, because the mean of its divisors is an integer number (42770014).

Almost surely, 2^85540027 is an apocalyptic number.

85540027 is a deficient number, since it is larger than the sum of its proper divisors (1).

85540027 is an equidigital number, since it uses as much as digits as its factorization.

85540027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 85540027 is about 9248.7851634688. The cubic root of 85540027 is about 440.6121421193.

The spelling of 85540027 in words is "eighty-five million, five hundred forty thousand, twenty-seven".