256603283 has 2 divisors, whose sum is σ = 256603284. Its totient is φ = 256603282.

The previous prime is 256603273. The next prime is 256603307. The reversal of 256603283 is 382306652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256603283 - 2²⁰ = 255554707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (256603273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128301641 + 128301642.

It is an arithmetic number, because the mean of its divisors is an integer number (128301642).

Almost surely, 2^256603283 is an apocalyptic number.

256603283 is a deficient number, since it is larger than the sum of its proper divisors (1).

256603283 is an equidigital number, since it uses as much as digits as its factorization.

256603283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 256603283 is about 16018.8414999338. The cubic root of 256603283 is about 635.4588066168.

The spelling of 256603283 in words is "two hundred fifty-six million, six hundred three thousand, two hundred eighty-three".