85081033 has 4 divisors (see below), whose sum is σ = 85152388. Its totient is φ = 85009680.

The previous prime is 85081021. The next prime is 85081037. The reversal of 85081033 is 33018058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27123264 + 57957769 = 5208^2 + 7613^2 .

It is a cyclic number.

It is not a de Polignac number, because 85081033 - 2⁵ = 85081001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85080992 and 85081010.

It is not an unprimeable number, because it can be changed into a prime (85081037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33858 + ... + 36283.

It is an arithmetic number, because the mean of its divisors is an integer number (21288097).

Almost surely, 2^85081033 is an apocalyptic number.

It is an amenable number.

85081033 is a deficient number, since it is larger than the sum of its proper divisors (71355).

85081033 is a wasteful number, since it uses less digits than its factorization.

85081033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71354.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 85081033 is about 9223.9380418561. The cubic root of 85081033 is about 439.8226437408.

The spelling of 85081033 in words is "eighty-five million, eighty-one thousand, thirty-three".