805835255601 has 4 divisors (see below), whose sum is σ = 1074447007472. Its totient is φ = 537223503732.

The previous prime is 805835255597. The next prime is 805835255609. The reversal of 805835255601 is 106552538508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 805835255601 - 2² = 805835255597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805835255609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134305875931 + ... + 134305875936.

It is an arithmetic number, because the mean of its divisors is an integer number (268611751868).

Almost surely, 2^805835255601 is an apocalyptic number.

It is an amenable number.

805835255601 is a deficient number, since it is larger than the sum of its proper divisors (268611751871).

805835255601 is a wasteful number, since it uses less digits than its factorization.

805835255601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268611751870.

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 805835255601 in words is "eight hundred five billion, eight hundred thirty-five million, two hundred fifty-five thousand, six hundred one".