28053055 has 4 divisors (see below), whose sum is σ = 33663672. Its totient is φ = 22442440.

The previous prime is 28053049. The next prime is 28053089. The reversal of 28053055 is 55035082.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28053055 - 2²¹ = 25955903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805301 + ... + 2805310.

It is an arithmetic number, because the mean of its divisors is an integer number (8415918).

Almost surely, 2^28053055 is an apocalyptic number.

28053055 is a deficient number, since it is larger than the sum of its proper divisors (5610617).

28053055 is an equidigital number, since it uses as much as digits as its factorization.

28053055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610616.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 28053055 is about 5296.5134758632. The cubic root of 28053055 is about 303.8505693055.

It can be divided in two parts, 280 and 53055, that added together give a palindrome (53335).

The spelling of 28053055 in words is "twenty-eight million, fifty-three thousand, fifty-five".