85259018 has 8 divisors (see below), whose sum is σ = 137726148. Its totient is φ = 39350304.

The previous prime is 85259017. The next prime is 85259047. The reversal of 85259018 is 81095258.

It can be written as a sum of positive squares in 2 ways, for example, as 75568249 + 9690769 = 8693^2 + 3113^2 .

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

It is not an unprimeable number, because it can be changed into a prime (85259017) 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, 1639571 + ... + 1639622.

Almost surely, 2^85259018 is an apocalyptic number.

85259018 is a deficient number, since it is larger than the sum of its proper divisors (52467130).

85259018 is a wasteful number, since it uses less digits than its factorization.

85259018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279208.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 85259018 is about 9233.5809954752. The cubic root of 85259018 is about 440.1291253255.

The spelling of 85259018 in words is "eighty-five million, two hundred fifty-nine thousand, eighteen".