80265205 has 8 divisors (see below), whose sum is σ = 97272504. Its totient is φ = 63576000.

The previous prime is 80265197. The next prime is 80265209. The reversal of 80265205 is 50256208.

It can be written as a sum of positive squares in 4 ways, for example, as 47018449 + 33246756 = 6857^2 + 5766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80265205 - 2³ = 80265197 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 (80265209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78966 + ... + 79975.

It is an arithmetic number, because the mean of its divisors is an integer number (12159063).

Almost surely, 2^80265205 is an apocalyptic number.

It is an amenable number.

80265205 is a deficient number, since it is larger than the sum of its proper divisors (17007299).

80265205 is a wasteful number, since it uses less digits than its factorization.

80265205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159047.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 80265205 is about 8959.0850537318. The cubic root of 80265205 is about 431.3625518730.

It can be divided in two parts, 8026 and 5205, that added together give a palindrome (13231).

The spelling of 80265205 in words is "eighty million, two hundred sixty-five thousand, two hundred five".