265001 has 4 divisors (see below), whose sum is σ = 289104. Its totient is φ = 240900.

The previous prime is 264997. The next prime is 265003. The reversal of 265001 is 100562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 265001 - 2² = 264997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12035 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (72276).

2²⁶⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

265001 is a deficient number, since it is larger than the sum of its proper divisors (24103).

265001 is a wasteful number, since it uses less digits than its factorization.

265001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24102.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 265001 is about 514.7824783343. The cubic root of 265001 is about 64.2316636800.

Adding to 265001 its reverse (100562), we get a palindrome (365563).

The spelling of 265001 in words is "two hundred sixty-five thousand, one".