85204518 has 16 divisors (see below), whose sum is σ = 194753280. Its totient is φ = 24344136.

The previous prime is 85204517. The next prime is 85204529. The reversal of 85204518 is 81540258.

It is a super-2 number, since 2×85204518² = 14519619775224648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204517) 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, 1014298 + ... + 1014381.

It is an arithmetic number, because the mean of its divisors is an integer number (12172080).

Almost surely, 2^85204518 is an apocalyptic number.

85204518 is an abundant number, since it is smaller than the sum of its proper divisors (109548762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85204518 is a wasteful number, since it uses less digits than its factorization.

85204518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028691.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 85204518 is about 9230.6293393246. The cubic root of 85204518 is about 440.0353242990.

The spelling of 85204518 in words is "eighty-five million, two hundred four thousand, five hundred eighteen".