28055053 has 4 divisors (see below), whose sum is σ = 30213148. Its totient is φ = 25896960.

The previous prime is 28055047. The next prime is 28055057. The reversal of 28055053 is 35055082.

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 3433609 + 24621444 = 1853^2 + 4962^2 .

It is a cyclic number.

It is not a de Polignac number, because 28055053 - 2⁵ = 28055021 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 (28055057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1079028 + ... + 1079053.

It is an arithmetic number, because the mean of its divisors is an integer number (7553287).

Almost surely, 2^28055053 is an apocalyptic number.

It is an amenable number.

28055053 is a deficient number, since it is larger than the sum of its proper divisors (2158095).

28055053 is a wasteful number, since it uses less digits than its factorization.

28055053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158094.

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

The square root of 28055053 is about 5296.7020871482. The cubic root of 28055053 is about 303.8577827685.

The spelling of 28055053 in words is "twenty-eight million, fifty-five thousand, fifty-three".