2808053 has 4 divisors (see below), whose sum is σ = 2837100. Its totient is φ = 2779008.

The previous prime is 2808031. The next prime is 2808059. The reversal of 2808053 is 3508082.

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 2256004 + 552049 = 1502^2 + 743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2808053 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 (2808059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14378 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (709275).

2^2808053 is an apocalyptic number.

It is an amenable number.

2808053 is a deficient number, since it is larger than the sum of its proper divisors (29047).

2808053 is an equidigital number, since it uses as much as digits as its factorization.

2808053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29046.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2808053 is about 1675.7246193811. The cubic root of 2808053 is about 141.0809688698.

The spelling of 2808053 in words is "two million, eight hundred eight thousand, fifty-three".