85445445 has 16 divisors (see below), whose sum is σ = 138955392. Its totient is φ = 44823360.

The previous prime is 85445441. The next prime is 85445453. The reversal of 85445445 is 54454458.

It is a happy number.

It is not a de Polignac number, because 85445445 - 2² = 85445441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85445441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45777 + ... + 47606.

It is an arithmetic number, because the mean of its divisors is an integer number (8684712).

Almost surely, 2^85445445 is an apocalyptic number.

It is an amenable number.

85445445 is a deficient number, since it is larger than the sum of its proper divisors (53509947).

85445445 is a wasteful number, since it uses less digits than its factorization.

85445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93452.

The product of its digits is 256000, while the sum is 39.

The square root of 85445445 is about 9243.6705371838. The cubic root of 85445445 is about 440.4496866068.

The spelling of 85445445 in words is "eighty-five million, four hundred forty-five thousand, four hundred forty-five".