250655 has 4 divisors (see below), whose sum is σ = 300792. Its totient is φ = 200520.

The previous prime is 250643. The next prime is 250673. The reversal of 250655 is 556052.

250655 is nontrivially palindromic in base 4.

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

It is not a de Polignac number, because 250655 - 2¹⁴ = 234271 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 250655.

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 250655.

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, 25061 + ... + 25070.

It is an arithmetic number, because the mean of its divisors is an integer number (75198).

2²⁵⁰⁶⁵⁵ is an apocalyptic number.

250655 is a deficient number, since it is larger than the sum of its proper divisors (50137).

250655 is an equidigital number, since it uses as much as digits as its factorization.

250655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50136.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 250655 is about 500.6545715361. The cubic root of 250655 is about 63.0510210693.

The spelling of 250655 in words is "two hundred fifty thousand, six hundred fifty-five".