28550159 has 8 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 25514200.

The previous prime is 28550099. The next prime is 28550201. The reversal of 28550159 is 95105582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28550159 is a prime.

It is a super-2 number, since 2×28550159² = 1630223157850562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550959) 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 7 ways as a sum of consecutive naturals, for example, 21347 + ... + 22644.

It is an arithmetic number, because the mean of its divisors is an integer number (3959280).

Almost surely, 2^28550159 is an apocalyptic number.

28550159 is a deficient number, since it is larger than the sum of its proper divisors (3124081).

28550159 is a wasteful number, since it uses less digits than its factorization.

28550159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44061.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 28550159 is about 5343.2348816050. The cubic root of 28550159 is about 305.6348293168.

The spelling of 28550159 in words is "twenty-eight million, five hundred fifty thousand, one hundred fifty-nine".