250801 has 4 divisors (see below), whose sum is σ = 265572. Its totient is φ = 236032.

The previous prime is 250799. The next prime is 250807. The reversal of 250801 is 108052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160801 + 90000 = 401^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 250801 - 2¹ = 250799 is a prime.

It is a super-2 number, since 2×250801² = 125802283202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7360 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (66393).

2²⁵⁰⁸⁰¹ is an apocalyptic number.

It is an amenable number.

250801 is a deficient number, since it is larger than the sum of its proper divisors (14771).

250801 is a wasteful number, since it uses less digits than its factorization.

250801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 250801 is about 500.8003594248. The cubic root of 250801 is about 63.0632605516.

Adding to 250801 its reverse (108052), we get a palindrome (358853).

The spelling of 250801 in words is "two hundred fifty thousand, eight hundred one".