85557418 has 8 divisors (see below), whose sum is σ = 135090720. Its totient is φ = 40527180.

The previous prime is 85557397. The next prime is 85557443. The reversal of 85557418 is 81475558.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125718 + ... + 1125793.

It is an arithmetic number, because the mean of its divisors is an integer number (16886340).

Almost surely, 2^85557418 is an apocalyptic number.

85557418 is a deficient number, since it is larger than the sum of its proper divisors (49533302).

85557418 is a wasteful number, since it uses less digits than its factorization.

85557418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251532.

The product of its digits is 224000, while the sum is 43.

The square root of 85557418 is about 9249.7252932182. The cubic root of 85557418 is about 440.6420001355.

The spelling of 85557418 in words is "eighty-five million, five hundred fifty-seven thousand, four hundred eighteen".