255001 has 4 divisors (see below), whose sum is σ = 266112. Its totient is φ = 243892.

The previous prime is 254993. The next prime is 255007. The reversal of 255001 is 100552.

255001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255001 - 2³ = 254993 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (66528).

2²⁵⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

255001 is a deficient number, since it is larger than the sum of its proper divisors (11111).

255001 is a wasteful number, since it uses less digits than its factorization.

255001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 255001 is about 504.9762370647. The cubic root of 255001 is about 63.4133399469.

Adding to 255001 its reverse (100552), we get a palindrome (355553).

Subtracting from 255001 its reverse (100552), we obtain a square (154449 = 393²).

The spelling of 255001 in words is "two hundred fifty-five thousand, one".