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75265 = 515053
BaseRepresentation
bin10010011000000001
310211020121
4102120001
54402030
61340241
7432301
oct223001
9124217
1075265
1151603
1237681
1328348
141d601
151747a
hex12601

75265 has 4 divisors (see below), whose sum is σ = 90324. Its totient is φ = 60208.

The previous prime is 75253. The next prime is 75269. The reversal of 75265 is 56257.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56257 = 101557.

It can be written as a sum of positive squares in 2 ways, for example, as 53361 + 21904 = 231^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 75265 - 213 = 67073 is a prime.

It is a Duffinian number.

75265 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (75269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7522 + ... + 7531.

It is an arithmetic number, because the mean of its divisors is an integer number (22581).

It is a Proth number, since it is equal to 147 ⋅ 29 + 1 and 147 < 29.

275265 is an apocalyptic number.

It is an amenable number.

75265 is a deficient number, since it is larger than the sum of its proper divisors (15059).

75265 is a wasteful number, since it uses less digits than its factorization.

75265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058.

The product of its digits is 2100, while the sum is 25.

The square root of 75265 is about 274.3446737227. The cubic root of 75265 is about 42.2212436933.

The spelling of 75265 in words is "seventy-five thousand, two hundred sixty-five".

Divisors: 1 5 15053 75265