248566 has 8 divisors (see below), whose sum is σ = 383040. Its totient is φ = 120888.

The previous prime is 248543. The next prime is 248569. The reversal of 248566 is 665842.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248569) by changing a digit.

248566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1606 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

248566 is a Friedman number, since it can be written as (8+4)^5-266, using all its digits and the basic arithmetic operations.

2²⁴⁸⁵⁶⁶ is an apocalyptic number.

248566 is a deficient number, since it is larger than the sum of its proper divisors (134474).

248566 is a wasteful number, since it uses less digits than its factorization.

248566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398.

The product of its digits is 11520, while the sum is 31.

The square root of 248566 is about 498.5639377251. The cubic root of 248566 is about 62.8753730082.

The spelling of 248566 in words is "two hundred forty-eight thousand, five hundred sixty-six".