85504549 has 4 divisors (see below), whose sum is σ = 92081836. Its totient is φ = 78927264.

The previous prime is 85504537. The next prime is 85504553. The reversal of 85504549 is 94540558.

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 36602500 + 48902049 = 6050^2 + 6993^2 .

It is not a de Polignac number, because 85504549 - 2⁹ = 85504037 is a prime.

It is a super-2 number, since 2×85504549² = 14622055799386802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85504589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3288624 + ... + 3288649.

It is an arithmetic number, because the mean of its divisors is an integer number (23020459).

Almost surely, 2^85504549 is an apocalyptic number.

It is an amenable number.

85504549 is a deficient number, since it is larger than the sum of its proper divisors (6577287).

85504549 is a wasteful number, since it uses less digits than its factorization.

85504549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577286.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 85504549 is about 9246.8669829299. The cubic root of 85504549 is about 440.5512185970.

The spelling of 85504549 in words is "eighty-five million, five hundred four thousand, five hundred forty-nine".