805260053 has 4 divisors (see below), whose sum is σ = 867203148. Its totient is φ = 743316960.

The previous prime is 805260031. The next prime is 805260089. The reversal of 805260053 is 350062508.

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 490091044 + 315169009 = 22138^2 + 17753^2 .

It is a cyclic number.

It is not a de Polignac number, because 805260053 - 2²⁴ = 788482837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 805259998 and 805260025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805280053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30971528 + ... + 30971553.

It is an arithmetic number, because the mean of its divisors is an integer number (216800787).

Almost surely, 2^805260053 is an apocalyptic number.

It is an amenable number.

805260053 is a deficient number, since it is larger than the sum of its proper divisors (61943095).

805260053 is a wasteful number, since it uses less digits than its factorization.

805260053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61943094.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 805260053 is about 28377.1043801160. The cubic root of 805260053 is about 930.3479073718.

The spelling of 805260053 in words is "eight hundred five million, two hundred sixty thousand, fifty-three".