250005 has 16 divisors (see below), whose sum is σ = 457344. Its totient is φ = 114240.

The previous prime is 249989. The next prime is 250007. The reversal of 250005 is 500052.

250005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250005 - 2⁴ = 249989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 1295.

It is an arithmetic number, because the mean of its divisors is an integer number (28584).

250005 is a Friedman number, since it can be written as 500^(2+0)+5, using all its digits and the basic arithmetic operations.

2²⁵⁰⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

250005 is a deficient number, since it is larger than the sum of its proper divisors (207339).

250005 is a wasteful number, since it uses less digits than its factorization.

250005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 250005 is about 500.0049999750. The cubic root of 250005 is about 62.9964724656.

Adding to 250005 its reverse (500052), we get a palindrome (750057).

Subtracting 250005 from its reverse (500052), we obtain a cube (250047 = 63³).

It can be divided in two parts, 25000 and 5, that multiplied together give a cube (125000 = 50³).

The spelling of 250005 in words is "two hundred fifty thousand, five".