20080265 has 16 divisors (see below), whose sum is σ = 25273728. Its totient is φ = 15286656.

The previous prime is 20080253. The next prime is 20080289. The reversal of 20080265 is 56208002.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20080265 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20080265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32237 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (1579608).

Almost surely, 2^20080265 is an apocalyptic number.

It is an amenable number.

20080265 is a deficient number, since it is larger than the sum of its proper divisors (5193463).

20080265 is a wasteful number, since it uses less digits than its factorization.

20080265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20080265 is about 4481.1008692061. The cubic root of 20080265 is about 271.8043981909.

Adding to 20080265 its reverse (56208002), we get a palindrome (76288267).

The spelling of 20080265 in words is "twenty million, eighty thousand, two hundred sixty-five".