248705256 has 64 divisors (see below), whose sum is σ = 661115520. Its totient is φ = 77792000.

The previous prime is 248705239. The next prime is 248705293. The reversal of 248705256 is 652507842.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25006 + ... + 33506.

It is an arithmetic number, because the mean of its divisors is an integer number (10329930).

Almost surely, 2^248705256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248705256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330557760).

248705256 is an abundant number, since it is smaller than the sum of its proper divisors (412410264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248705256 is a wasteful number, since it uses less digits than its factorization.

248705256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 248705256 is about 15770.3917516338. The cubic root of 248705256 is about 628.8711253060.

The spelling of 248705256 in words is "two hundred forty-eight million, seven hundred five thousand, two hundred fifty-six".