250381 has 4 divisors (see below), whose sum is σ = 251712. Its totient is φ = 249052.

The previous prime is 250361. The next prime is 250403. The reversal of 250381 is 183052.

It is a happy number.

250381 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 a cyclic number.

It is not a de Polignac number, because 250381 - 2⁷ = 250253 is a prime.

It is a super-2 number, since 2×250381² = 125381290322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250301) 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, 325 + ... + 778.

It is an arithmetic number, because the mean of its divisors is an integer number (62928).

2²⁵⁰³⁸¹ is an apocalyptic number.

It is an amenable number.

250381 is a deficient number, since it is larger than the sum of its proper divisors (1331).

250381 is a wasteful number, since it uses less digits than its factorization.

250381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 250381 is about 500.3808549495. The cubic root of 250381 is about 63.0280382461.

The spelling of 250381 in words is "two hundred fifty thousand, three hundred eighty-one".