28253353 has 4 divisors (see below), whose sum is σ = 28271700. Its totient is φ = 28235008.

The previous prime is 28253327. The next prime is 28253363. The reversal of 28253353 is 35335282.

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 24970009 + 3283344 = 4997^2 + 1812^2 .

It is a cyclic number.

It is not a de Polignac number, because 28253353 - 2⁹ = 28252841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28253363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6628 + ... + 10021.

It is an arithmetic number, because the mean of its divisors is an integer number (7067925).

Almost surely, 2^28253353 is an apocalyptic number.

It is an amenable number.

28253353 is a deficient number, since it is larger than the sum of its proper divisors (18347).

28253353 is a wasteful number, since it uses less digits than its factorization.

28253353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18346.

The product of its digits is 21600, while the sum is 31.

The square root of 28253353 is about 5315.3883207156. The cubic root of 28253353 is about 304.5720164038.

It can be divided in two parts, 282 and 53353, that added together give a palindrome (53635).

The spelling of 28253353 in words is "twenty-eight million, two hundred fifty-three thousand, three hundred fifty-three".