250115 has 4 divisors (see below), whose sum is σ = 300144. Its totient is φ = 200088.

The previous prime is 250109. The next prime is 250123. The reversal of 250115 is 511052.

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

It is a cyclic number.

It is not a de Polignac number, because 250115 - 2⁶ = 250051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25007 + ... + 25016.

It is an arithmetic number, because the mean of its divisors is an integer number (75036).

2²⁵⁰¹¹⁵ is an apocalyptic number.

250115 is a deficient number, since it is larger than the sum of its proper divisors (50029).

250115 is an equidigital number, since it uses as much as digits as its factorization.

250115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50028.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 250115 is about 500.1149867780. The cubic root of 250115 is about 63.0057104087.

Adding to 250115 its reverse (511052), we get a palindrome (761167).

The spelling of 250115 in words is "two hundred fifty thousand, one hundred fifteen".