85504449 has 8 divisors (see below), whose sum is σ = 115071840. Its totient is φ = 56470016.

The previous prime is 85504411. The next prime is 85504451. The reversal of 85504449 is 94440558.

85504449 = 2171² + 2172² + ... + 2188².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85504449 - 2⁹ = 85503937 is a prime.

It is a super-2 number, since 2×85504449² = 14622021597587202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85504649) 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 7 ways as a sum of consecutive naturals, for example, 132864 + ... + 133505.

It is an arithmetic number, because the mean of its divisors is an integer number (14383980).

Almost surely, 2^85504449 is an apocalyptic number.

It is an amenable number.

85504449 is a deficient number, since it is larger than the sum of its proper divisors (29567391).

85504449 is a wasteful number, since it uses less digits than its factorization.

85504449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266479.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 85504449 is about 9246.8615756915. The cubic root of 85504449 is about 440.5510468512.

The spelling of 85504449 in words is "eighty-five million, five hundred four thousand, four hundred forty-nine".