263050009 has 2 divisors, whose sum is σ = 263050010. Its totient is φ = 263050008.

The previous prime is 263049979. The next prime is 263050019. The reversal of 263050009 is 900050362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260499600 + 2550409 = 16140^2 + 1597^2 .

It is a cyclic number.

It is not a de Polignac number, because 263050009 - 2⁷ = 263049881 is a prime.

It is not a weakly prime, because it can be changed into another prime (263050019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131525004 + 131525005.

It is an arithmetic number, because the mean of its divisors is an integer number (131525005).

Almost surely, 2^263050009 is an apocalyptic number.

It is an amenable number.

263050009 is a deficient number, since it is larger than the sum of its proper divisors (1).

263050009 is an equidigital number, since it uses as much as digits as its factorization.

263050009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 263050009 is about 16218.8165104609. The cubic root of 263050009 is about 640.7364642186.

The spelling of 263050009 in words is "two hundred sixty-three million, fifty thousand, nine".