851255200 has 36 divisors (see below), whose sum is σ = 2078128710. Its totient is φ = 340501760.

The previous prime is 851255179. The next prime is 851255203. The reversal of 851255200 is 2552158.

It can be written as a sum of positive squares in 3 ways, for example, as 482768784 + 368486416 = 21972^2 + 19196^2 .

It is not an unprimeable number, because it can be changed into a prime (851255203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 531235 + ... + 532834.

Almost surely, 2^851255200 is an apocalyptic number.

851255200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

851255200 is an abundant number, since it is smaller than the sum of its proper divisors (1226873510).

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

851255200 is a wasteful number, since it uses less digits than its factorization.

851255200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064089 (or 1064076 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 851255200 is about 29176.2780354177. The cubic root of 851255200 is about 947.7342867144.

The spelling of 851255200 in words is "eight hundred fifty-one million, two hundred fifty-five thousand, two hundred".