851204056 has 32 divisors (see below), whose sum is σ = 1722837600. Its totient is φ = 393057280.

The previous prime is 851204023. The next prime is 851204077. The reversal of 851204056 is 650402158.

It is a super-2 number, since 2×851204056² = 1449096689901702272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74425 + ... + 85096.

It is an arithmetic number, because the mean of its divisors is an integer number (53838675).

Almost surely, 2^851204056 is an apocalyptic number.

It is an amenable number.

851204056 is an abundant number, since it is smaller than the sum of its proper divisors (871633544).

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

851204056 is a wasteful number, since it uses less digits than its factorization.

851204056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159579 (or 159575 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 851204056 is about 29175.4015567910. The cubic root of 851204056 is about 947.7153061576.

The spelling of 851204056 in words is "eight hundred fifty-one million, two hundred four thousand, fifty-six".