5280805 has 4 divisors (see below), whose sum is σ = 6336972. Its totient is φ = 4224640.

The previous prime is 5280799. The next prime is 5280809. The reversal of 5280805 is 5080825.

5280805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2298²+1.

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 1898884 + 3381921 = 1378^2 + 1839^2 .

It is not a de Polignac number, because 5280805 - 2⁵ = 5280773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5280809) 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, 528076 + ... + 528085.

It is an arithmetic number, because the mean of its divisors is an integer number (1584243).

Almost surely, 2^5280805 is an apocalyptic number.

It is an amenable number.

5280805 is a deficient number, since it is larger than the sum of its proper divisors (1056167).

5280805 is a wasteful number, since it uses less digits than its factorization.

5280805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056166.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 5280805 is about 2298.0002175805. Note that the first 3 decimals coincide. The cubic root of 5280805 is about 174.1406028726.

The spelling of 5280805 in words is "five million, two hundred eighty thousand, eight hundred five".