805852501 has 4 divisors (see below), whose sum is σ = 807342604. Its totient is φ = 804362400.

The previous prime is 805852441. The next prime is 805852507. The reversal of 805852501 is 105258508.

805852501 = 264² + 265² + ... + 1345².

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 624950001 + 180902500 = 24999^2 + 13450^2 .

It is a cyclic number.

It is not a de Polignac number, because 805852501 - 2⁷ = 805852373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805852507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744240 + ... + 745321.

It is an arithmetic number, because the mean of its divisors is an integer number (201835651).

Almost surely, 2^805852501 is an apocalyptic number.

It is an amenable number.

805852501 is a deficient number, since it is larger than the sum of its proper divisors (1490103).

805852501 is a wasteful number, since it uses less digits than its factorization.

805852501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490102.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 805852501 is about 28387.5412989572. The cubic root of 805852501 is about 930.5760107601.

The spelling of 805852501 in words is "eight hundred five million, eight hundred fifty-two thousand, five hundred one".