75065 has 4 divisors (see below), whose sum is σ = 90084. Its totient is φ = 60048.

The previous prime is 75041. The next prime is 75079. The reversal of 75065 is 56057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56057 = 29 ⋅1933.

It can be written as a sum of positive squares in 2 ways, for example, as 41209 + 33856 = 203^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 75065 - 2¹² = 70969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7502 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (22521).

2⁷⁵⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

75065 is a deficient number, since it is larger than the sum of its proper divisors (15019).

75065 is a wasteful number, since it uses less digits than its factorization.

75065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15018.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 75065 is about 273.9799262720. The cubic root of 75065 is about 42.1838126635.

The spelling of 75065 in words is "seventy-five thousand, sixty-five".