85218750 has 112 divisors (see below), whose sum is σ = 239059440. Its totient is φ = 22500000.

The previous prime is 85218737. The next prime is 85218761. The reversal of 85218750 is 5781258.

85218750 is a `hidden beast` number, since 8 + 521 + 87 + 50 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 843700 + ... + 843800.

Almost surely, 2^85218750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85218750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119529720).

85218750 is an abundant number, since it is smaller than the sum of its proper divisors (153840690).

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

85218750 is an equidigital number, since it uses as much as digits as its factorization.

85218750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 85218750 is about 9231.4002188184. The cubic root of 85218750 is about 440.0598231332.

It can be divided in two parts, 8521 and 8750, that added together give a palindrome (17271).

The spelling of 85218750 in words is "eighty-five million, two hundred eighteen thousand, seven hundred fifty".