257225248799 has 2 divisors, whose sum is σ = 257225248800. Its totient is φ = 257225248798.

The previous prime is 257225248783. The next prime is 257225248811. The reversal of 257225248799 is 997842522752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257225248799 - 2⁴ = 257225248783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257225248729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128612624399 + 128612624400.

It is an arithmetic number, because the mean of its divisors is an integer number (128612624400).

Almost surely, 2^257225248799 is an apocalyptic number.

257225248799 is a deficient number, since it is larger than the sum of its proper divisors (1).

257225248799 is an equidigital number, since it uses as much as digits as its factorization.

257225248799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 62.

The spelling of 257225248799 in words is "two hundred fifty-seven billion, two hundred twenty-five million, two hundred forty-eight thousand, seven hundred ninety-nine".