263054321 has 2 divisors, whose sum is σ = 263054322. Its totient is φ = 263054320.

The previous prime is 263054299. The next prime is 263054329. The reversal of 263054321 is 123450362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256480225 + 6574096 = 16015^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 263054321 - 2¹⁴ = 263037937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (263054329) 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, 131527160 + 131527161.

It is an arithmetic number, because the mean of its divisors is an integer number (131527161).

Almost surely, 2^263054321 is an apocalyptic number.

It is an amenable number.

263054321 is a deficient number, since it is larger than the sum of its proper divisors (1).

263054321 is an equidigital number, since it uses as much as digits as its factorization.

263054321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 263054321 is about 16218.9494419337. The cubic root of 263054321 is about 640.7399652519.

The spelling of 263054321 in words is "two hundred sixty-three million, fifty-four thousand, three hundred twenty-one".