851508056 has 32 divisors (see below), whose sum is σ = 1826772480. Its totient is φ = 364509600.

The previous prime is 851508043. The next prime is 851508079. The reversal of 851508056 is 650805158.

851508056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42671 + ... + 59361.

It is an arithmetic number, because the mean of its divisors is an integer number (57086640).

Almost surely, 2^851508056 is an apocalyptic number.

It is an amenable number.

851508056 is an abundant number, since it is smaller than the sum of its proper divisors (975264424).

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

851508056 is a wasteful number, since it uses less digits than its factorization.

851508056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17615 (or 17611 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 851508056 is about 29180.6109600193. The cubic root of 851508056 is about 947.8281154422.

The spelling of 851508056 in words is "eight hundred fifty-one million, five hundred eight thousand, fifty-six".