75028105 has 4 divisors (see below), whose sum is σ = 90033732. Its totient is φ = 60022480.

The previous prime is 75028087. The next prime is 75028183. The reversal of 75028105 is 50182057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50182057 = 113 ⋅444089.

It can be written as a sum of positive squares in 2 ways, for example, as 32569849 + 42458256 = 5707^2 + 6516^2 .

It is not a de Polignac number, because 75028105 - 2¹¹ = 75026057 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 7502806 + ... + 7502815.

It is an arithmetic number, because the mean of its divisors is an integer number (22508433).

Almost surely, 2^75028105 is an apocalyptic number.

It is an amenable number.

75028105 is a deficient number, since it is larger than the sum of its proper divisors (15005627).

75028105 is a wasteful number, since it uses less digits than its factorization.

75028105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15005626.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 75028105 is about 8661.8765287898. The cubic root of 75028105 is about 421.7690031280.

The spelling of 75028105 in words is "seventy-five million, twenty-eight thousand, one hundred five".