257352803 has 2 divisors, whose sum is σ = 257352804. Its totient is φ = 257352802.

The previous prime is 257352791. The next prime is 257352833. The reversal of 257352803 is 308253752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257352803 - 2¹⁰ = 257351779 is a prime.

It is not a weakly prime, because it can be changed into another prime (257352833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128676401 + 128676402.

It is an arithmetic number, because the mean of its divisors is an integer number (128676402).

Almost surely, 2^257352803 is an apocalyptic number.

257352803 is a deficient number, since it is larger than the sum of its proper divisors (1).

257352803 is an equidigital number, since it uses as much as digits as its factorization.

257352803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 257352803 is about 16042.2193913436. The cubic root of 257352803 is about 636.0769152327.

The spelling of 257352803 in words is "two hundred fifty-seven million, three hundred fifty-two thousand, eight hundred three".