28150055 has 8 divisors (see below), whose sum is σ = 33858000. Its totient is φ = 22468096.

The previous prime is 28150037. The next prime is 28150063. The reversal of 28150055 is 55005182.

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 28150055 - 2¹⁰ = 28149031 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 4025 + ... + 8514.

It is an arithmetic number, because the mean of its divisors is an integer number (4232250).

Almost surely, 2^28150055 is an apocalyptic number.

28150055 is a deficient number, since it is larger than the sum of its proper divisors (5707945).

28150055 is a wasteful number, since it uses less digits than its factorization.

28150055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 28150055 is about 5305.6625410970. The cubic root of 28150055 is about 304.2003779070.

The spelling of 28150055 in words is "twenty-eight million, one hundred fifty thousand, fifty-five".