85224518 has 8 divisors (see below), whose sum is σ = 131960640. Its totient is φ = 41237640.

The previous prime is 85224509. The next prime is 85224523. The reversal of 85224518 is 81542258.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 687233 + ... + 687356.

It is an arithmetic number, because the mean of its divisors is an integer number (16495080).

Almost surely, 2^85224518 is an apocalyptic number.

85224518 is a deficient number, since it is larger than the sum of its proper divisors (46736122).

85224518 is a wasteful number, since it uses less digits than its factorization.

85224518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374622.

The product of its digits is 25600, while the sum is 35.

The square root of 85224518 is about 9231.7126255100. The cubic root of 85224518 is about 440.0697513387.

The spelling of 85224518 in words is "eighty-five million, two hundred twenty-four thousand, five hundred eighteen".