85080811 has 2 divisors, whose sum is σ = 85080812. Its totient is φ = 85080810.

The previous prime is 85080761. The next prime is 85080829. The reversal of 85080811 is 11808058.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85080811 is a prime.

It is not a weakly prime, because it can be changed into another prime (85080851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42540405 + 42540406.

It is an arithmetic number, because the mean of its divisors is an integer number (42540406).

Almost surely, 2^85080811 is an apocalyptic number.

85080811 is a deficient number, since it is larger than the sum of its proper divisors (1).

85080811 is an equidigital number, since it uses as much as digits as its factorization.

85080811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 85080811 is about 9223.9260079426. The cubic root of 85080811 is about 439.8222612007.

Adding to 85080811 its reverse (11808058), we get a palindrome (96888869).

The spelling of 85080811 in words is "eighty-five million, eighty thousand, eight hundred eleven".