851825901 has 8 divisors (see below), whose sum is σ = 1136498944. Its totient is φ = 567518400.

The previous prime is 851825869. The next prime is 851825927. The reversal of 851825901 is 109528158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 851825901 - 2⁵ = 851825869 is a prime.

It is a super-2 number, since 2×851825901² = 1451214731228923602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 851825901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851825941) by changing a digit.

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, 85900 + ... + 95301.

It is an arithmetic number, because the mean of its divisors is an integer number (142062368).

Almost surely, 2^851825901 is an apocalyptic number.

It is an amenable number.

851825901 is a deficient number, since it is larger than the sum of its proper divisors (284673043).

851825901 is a wasteful number, since it uses less digits than its factorization.

851825901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182771.

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 851825901 is about 29186.0566195572. The cubic root of 851825901 is about 947.9460336653.

The spelling of 851825901 in words is "eight hundred fifty-one million, eight hundred twenty-five thousand, nine hundred one".