85544211 has 4 divisors (see below), whose sum is σ = 114058952. Its totient is φ = 57029472.

The previous prime is 85544209. The next prime is 85544231. The reversal of 85544211 is 11244558.

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

It is not a de Polignac number, because 85544211 - 2¹ = 85544209 is a prime.

It is a super-2 number, since 2×85544211² = 14635624071225042, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (85544231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14257366 + ... + 14257371.

It is an arithmetic number, because the mean of its divisors is an integer number (28514738).

Almost surely, 2^85544211 is an apocalyptic number.

85544211 is a deficient number, since it is larger than the sum of its proper divisors (28514741).

85544211 is a wasteful number, since it uses less digits than its factorization.

85544211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514740.

The product of its digits is 6400, while the sum is 30.

The square root of 85544211 is about 9249.0113525717. The cubic root of 85544211 is about 440.6193258562.

Adding to 85544211 its reverse (11244558), we get a palindrome (96788769).

The spelling of 85544211 in words is "eighty-five million, five hundred forty-four thousand, two hundred eleven".