800550901 has 4 divisors (see below), whose sum is σ = 806310400. Its totient is φ = 794791404.

The previous prime is 800550899. The next prime is 800550911. The reversal of 800550901 is 109055008.

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 a cyclic number.

It is not a de Polignac number, because 800550901 - 2¹ = 800550899 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 800550901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800550911) 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, 2879541 + ... + 2879818.

It is an arithmetic number, because the mean of its divisors is an integer number (201577600).

Almost surely, 2^800550901 is an apocalyptic number.

It is an amenable number.

800550901 is a deficient number, since it is larger than the sum of its proper divisors (5759499).

800550901 is a wasteful number, since it uses less digits than its factorization.

800550901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759498.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 800550901 is about 28294.0082172887. The cubic root of 800550901 is about 928.5308058228.

The spelling of 800550901 in words is "eight hundred million, five hundred fifty thousand, nine hundred one".