28023552 has 54 divisors (see below), whose sum is σ = 80805452. Its totient is φ = 9340416.

The previous prime is 28023551. The next prime is 28023553. The reversal of 28023552 is 25532082.

It is an interprime number because it is at equal distance from previous prime (28023551) and next prime (28023553).

It is not an unprimeable number, because it can be changed into a prime (28023551) 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 5 ways as a sum of consecutive naturals, for example, 3778 + ... + 8385.

Almost surely, 2^28023552 is an apocalyptic number.

It is an amenable number.

28023552 is an abundant number, since it is smaller than the sum of its proper divisors (52781900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28023552 is a wasteful number, since it uses less digits than its factorization.

28023552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12185 (or 12168 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28023552 is about 5293.7276091616. The cubic root of 28023552 is about 303.7440134978.

It can be divided in two parts, 280 and 23552, that added together give a palindrome (23832).

The spelling of 28023552 in words is "twenty-eight million, twenty-three thousand, five hundred fifty-two".