257225248811 has 2 divisors, whose sum is σ = 257225248812. Its totient is φ = 257225248810.

The previous prime is 257225248799. The next prime is 257225248877. The reversal of 257225248811 is 118842522752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257225248811 - 2¹⁴ = 257225232427 is a prime.

It is not a weakly prime, because it can be changed into another prime (257225448811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128612624405 + 128612624406.

It is an arithmetic number, because the mean of its divisors is an integer number (128612624406).

Almost surely, 2^257225248811 is an apocalyptic number.

257225248811 is a deficient number, since it is larger than the sum of its proper divisors (1).

257225248811 is an equidigital number, since it uses as much as digits as its factorization.

257225248811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 716800, while the sum is 47.

The spelling of 257225248811 in words is "two hundred fifty-seven billion, two hundred twenty-five million, two hundred forty-eight thousand, eight hundred eleven".