250055 has 8 divisors (see below), whose sum is σ = 323232. Its totient is φ = 184608.

The previous prime is 250051. The next prime is 250057. The reversal of 250055 is 550052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 250055 - 2² = 250051 is a prime.

250055 is a modest number, since divided by 55 gives 25 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250055.

It is not an unprimeable number, because it can be changed into a prime (250051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (40404).

250055 is a Friedman number, since it can be written as 500^2+55, using all its digits and the basic arithmetic operations.

2²⁵⁰⁰⁵⁵ is an apocalyptic number.

250055 is a deficient number, since it is larger than the sum of its proper divisors (73177).

250055 is a wasteful number, since it uses less digits than its factorization.

250055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865.

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 250055 is about 500.0549969753. The cubic root of 250055 is about 63.0006718665. Note that the first 3 decimals are identical.

The spelling of 250055 in words is "two hundred fifty thousand, fifty-five".