805798053 has 12 divisors (see below), whose sum is σ = 1164342348. Its totient is φ = 537008640.

The previous prime is 805798039. The next prime is 805798093. The reversal of 805798053 is 350897508.

It can be written as a sum of positive squares in 2 ways, for example, as 589178529 + 216619524 = 24273^2 + 14718^2 .

It is not a de Polignac number, because 805798053 - 2²⁸ = 537362597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805798003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13963 + ... + 42503.

It is an arithmetic number, because the mean of its divisors is an integer number (97028529).

Almost surely, 2^805798053 is an apocalyptic number.

It is an amenable number.

805798053 is a deficient number, since it is larger than the sum of its proper divisors (358544295).

805798053 is a wasteful number, since it uses less digits than its factorization.

805798053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31684 (or 31681 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 805798053 is about 28386.5822705024. The cubic root of 805798053 is about 930.5550519437. Note that the first 3 decimals are identical.

The spelling of 805798053 in words is "eight hundred five million, seven hundred ninety-eight thousand, fifty-three".