248563811 has 2 divisors, whose sum is σ = 248563812. Its totient is φ = 248563810.

The previous prime is 248563793. The next prime is 248563841. The reversal of 248563811 is 118365842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248563811 - 2⁶ = 248563747 is a prime.

It is not a weakly prime, because it can be changed into another prime (248563841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124281905 + 124281906.

It is an arithmetic number, because the mean of its divisors is an integer number (124281906).

Almost surely, 2^248563811 is an apocalyptic number.

248563811 is a deficient number, since it is larger than the sum of its proper divisors (1).

248563811 is an equidigital number, since it uses as much as digits as its factorization.

248563811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 248563811 is about 15765.9066025395. The cubic root of 248563811 is about 628.7518843674.

The spelling of 248563811 in words is "two hundred forty-eight million, five hundred sixty-three thousand, eight hundred eleven".