28529253 has 20 divisors (see below), whose sum is σ = 43614208. Its totient is φ = 18574920.

The previous prime is 28529251. The next prime is 28529261. The reversal of 28529253 is 35292582.

It is not a de Polignac number, because 28529253 - 2¹ = 28529251 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 (28529251) 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 19 ways as a sum of consecutive naturals, for example, 613 + ... + 7578.

Almost surely, 2^28529253 is an apocalyptic number.

It is an amenable number.

28529253 is a deficient number, since it is larger than the sum of its proper divisors (15084955).

28529253 is an equidigital number, since it uses as much as digits as its factorization.

28529253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8246 (or 8237 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 28529253 is about 5341.2782178052. The cubic root of 28529253 is about 305.5602102113.

It can be divided in two parts, 28529 and 253, that added together give a palindrome (28782).

The spelling of 28529253 in words is "twenty-eight million, five hundred twenty-nine thousand, two hundred fifty-three".