248564 has 6 divisors (see below), whose sum is σ = 434994. Its totient is φ = 124280.

The previous prime is 248543. The next prime is 248569. The reversal of 248564 is 465842.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 8464 = 490^2 + 92^2 .

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31067 + ... + 31074.

It is an arithmetic number, because the mean of its divisors is an integer number (72499).

2²⁴⁸⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

248564 is a deficient number, since it is larger than the sum of its proper divisors (186430).

248564 is a wasteful number, since it uses less digits than its factorization.

248564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62145 (or 62143 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 248564 is about 498.5619319603. The cubic root of 248564 is about 62.8752043728.

The spelling of 248564 in words is "two hundred forty-eight thousand, five hundred sixty-four".