850925851 has 4 divisors (see below), whose sum is σ = 878375104. Its totient is φ = 823476600.

The previous prime is 850925843. The next prime is 850925857. The reversal of 850925851 is 158529058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 850925851 - 2³ = 850925843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 850925798 and 850925807.

It is not an unprimeable number, because it can be changed into a prime (850925857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13724580 + ... + 13724641.

It is an arithmetic number, because the mean of its divisors is an integer number (219593776).

Almost surely, 2^850925851 is an apocalyptic number.

850925851 is a deficient number, since it is larger than the sum of its proper divisors (27449253).

850925851 is a wasteful number, since it uses less digits than its factorization.

850925851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27449252.

The product of its (nonzero) digits is 144000, while the sum is 43.

The square root of 850925851 is about 29170.6333664526. The cubic root of 850925851 is about 947.6120454237.

The spelling of 850925851 in words is "eight hundred fifty million, nine hundred twenty-five thousand, eight hundred fifty-one".