805853251 has 8 divisors (see below), whose sum is σ = 969447680. Its totient is φ = 654376968.

The previous prime is 805853221. The next prime is 805853267. The reversal of 805853251 is 152358508.

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

It is not a de Polignac number, because 805853251 - 2⁵ = 805853219 is a prime.

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 805853251.

It is not an unprimeable number, because it can be changed into a prime (805853201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029391 + ... + 3029656.

It is an arithmetic number, because the mean of its divisors is an integer number (121180960).

Almost surely, 2^805853251 is an apocalyptic number.

805853251 is a deficient number, since it is larger than the sum of its proper divisors (163594429).

805853251 is a wasteful number, since it uses less digits than its factorization.

805853251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059073.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 805853251 is about 28387.5545089745. The cubic root of 805853251 is about 930.5762994531.

It can be divided in two parts, 80 and 5853251, that added together give a triangular number (5853331 = T₃₄₂₁).

The spelling of 805853251 in words is "eight hundred five million, eight hundred fifty-three thousand, two hundred fifty-one".