28553072 has 10 divisors (see below), whose sum is σ = 55321608. Its totient is φ = 14276528.

The previous prime is 28553071. The next prime is 28553087. The reversal of 28553072 is 27035582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28553071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892268 + ... + 892299.

Almost surely, 2^28553072 is an apocalyptic number.

It is an amenable number.

28553072 is a deficient number, since it is larger than the sum of its proper divisors (26768536).

28553072 is a wasteful number, since it uses less digits than its factorization.

28553072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784575 (or 1784569 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 28553072 is about 5343.5074623322. The cubic root of 28553072 is about 305.6452237012.

The spelling of 28553072 in words is "twenty-eight million, five hundred fifty-three thousand, seventy-two".