28253559 has 8 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 18821816.

The previous prime is 28253549. The next prime is 28253567. The reversal of 28253559 is 95535282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28253559 - 2¹⁵ = 28220791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28253549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992 + ... + 8090.

It is an arithmetic number, because the mean of its divisors is an integer number (4712400).

Almost surely, 2^28253559 is an apocalyptic number.

28253559 is a deficient number, since it is larger than the sum of its proper divisors (9445641).

28253559 is a wasteful number, since it uses less digits than its factorization.

28253559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949.

The product of its digits is 108000, while the sum is 39.

The square root of 28253559 is about 5315.4076983802. The cubic root of 28253559 is about 304.5727566308.

The spelling of 28253559 in words is "twenty-eight million, two hundred fifty-three thousand, five hundred fifty-nine".