850955508 has 144 divisors (see below), whose sum is σ = 2469929280. Its totient is φ = 244850688.

The previous prime is 850955507. The next prime is 850955557. The reversal of 850955508 is 805559058.

850955508 is a `hidden beast` number, since 8 + 5 + 0 + 95 + 550 + 8 = 666.

850955508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850955503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 737460 + ... + 738612.

Almost surely, 2^850955508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850955508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234964640).

850955508 is an abundant number, since it is smaller than the sum of its proper divisors (1618973772).

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

850955508 is a wasteful number, since it uses less digits than its factorization.

850955508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

The square root of 850955508 is about 29171.1416986034. The cubic root of 850955508 is about 947.6230542184.

The spelling of 850955508 in words is "eight hundred fifty million, nine hundred fifty-five thousand, five hundred eight".