250555 has 4 divisors (see below), whose sum is σ = 300672. Its totient is φ = 200440.

The previous prime is 250543. The next prime is 250583. The reversal of 250555 is 555052.

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

It is not a de Polignac number, because 250555 - 2⁹ = 250043 is a prime.

It is a Duffinian number.

250555 is a modest number, since divided by 555 gives 250 as remainder.

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, 25051 + ... + 25060.

It is an arithmetic number, because the mean of its divisors is an integer number (75168).

2²⁵⁰⁵⁵⁵ is an apocalyptic number.

250555 is a deficient number, since it is larger than the sum of its proper divisors (50117).

250555 is an equidigital number, since it uses as much as digits as its factorization.

250555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50116.

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 250555 is about 500.5546923164. The cubic root of 250555 is about 63.0426351194.

The spelling of 250555 in words is "two hundred fifty thousand, five hundred fifty-five".