800056565 has 48 divisors (see below), whose sum is σ = 1223812800. Its totient is φ = 496500480.

The previous prime is 800056561. The next prime is 800056577. The reversal of 800056565 is 565650008.

It is not a de Polignac number, because 800056565 - 2² = 800056561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800056561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 762161 + ... + 763209.

It is an arithmetic number, because the mean of its divisors is an integer number (25496100).

Almost surely, 2^800056565 is an apocalyptic number.

It is an amenable number.

800056565 is a deficient number, since it is larger than the sum of its proper divisors (423756235).

800056565 is a wasteful number, since it uses less digits than its factorization.

800056565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 800056565 is about 28285.2711671640. The cubic root of 800056565 is about 928.3396454963.

The spelling of 800056565 in words is "eight hundred million, fifty-six thousand, five hundred sixty-five".