5200805 has 4 divisors (see below), whose sum is σ = 6240972. Its totient is φ = 4160640.

The previous prime is 5200801. The next prime is 5200843. The reversal of 5200805 is 5080025.

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 1331716 + 3869089 = 1154^2 + 1967^2 .

It is not a de Polignac number, because 5200805 - 2² = 5200801 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 (5200801) 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, 520076 + ... + 520085.

It is an arithmetic number, because the mean of its divisors is an integer number (1560243).

Almost surely, 2^5200805 is an apocalyptic number.

It is an amenable number.

5200805 is a deficient number, since it is larger than the sum of its proper divisors (1040167).

5200805 is a wasteful number, since it uses less digits than its factorization.

5200805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040166.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 5200805 is about 2280.5273512940. The cubic root of 5200805 is about 173.2567606387.

The spelling of 5200805 in words is "five million, two hundred thousand, eight hundred five".