257010563 has 2 divisors, whose sum is σ = 257010564. Its totient is φ = 257010562.

The previous prime is 257010541. The next prime is 257010569. The reversal of 257010563 is 365010752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257010563 - 2¹⁰ = 257009539 is a prime.

It is not a weakly prime, because it can be changed into another prime (257010569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128505281 + 128505282.

It is an arithmetic number, because the mean of its divisors is an integer number (128505282).

Almost surely, 2^257010563 is an apocalyptic number.

257010563 is a deficient number, since it is larger than the sum of its proper divisors (1).

257010563 is an equidigital number, since it uses as much as digits as its factorization.

257010563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 257010563 is about 16031.5489894146. The cubic root of 257010563 is about 635.7948283713.

The spelling of 257010563 in words is "two hundred fifty-seven million, ten thousand, five hundred sixty-three".