257546063 has 2 divisors, whose sum is σ = 257546064. Its totient is φ = 257546062.

The previous prime is 257546021. The next prime is 257546089. The reversal of 257546063 is 360645752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257546063 - 2¹⁰ = 257545039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257546363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128773031 + 128773032.

It is an arithmetic number, because the mean of its divisors is an integer number (128773032).

Almost surely, 2^257546063 is an apocalyptic number.

257546063 is a deficient number, since it is larger than the sum of its proper divisors (1).

257546063 is an equidigital number, since it uses as much as digits as its factorization.

257546063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 257546063 is about 16048.2417416987. The cubic root of 257546063 is about 636.2360967984.

The spelling of 257546063 in words is "two hundred fifty-seven million, five hundred forty-six thousand, sixty-three".