248763985 has 4 divisors (see below), whose sum is σ = 298516788. Its totient is φ = 199011184.

The previous prime is 248763973. The next prime is 248764027. The reversal of 248763985 is 589367842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54774801 + 193989184 = 7401^2 + 13928^2 .

It is a cyclic number.

It is not a de Polignac number, because 248763985 - 2⁷ = 248763857 is a prime.

It is a Duffinian number.

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, 24876394 + ... + 24876403.

It is an arithmetic number, because the mean of its divisors is an integer number (74629197).

Almost surely, 2^248763985 is an apocalyptic number.

It is an amenable number.

248763985 is a deficient number, since it is larger than the sum of its proper divisors (49752803).

248763985 is an equidigital number, since it uses as much as digits as its factorization.

248763985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49752802.

The product of its digits is 2903040, while the sum is 52.

The square root of 248763985 is about 15772.2536436617. The cubic root of 248763985 is about 628.9206217343.

The spelling of 248763985 in words is "two hundred forty-eight million, seven hundred sixty-three thousand, nine hundred eighty-five".