263088401 has 2 divisors, whose sum is σ = 263088402. Its totient is φ = 263088400.

The previous prime is 263088341. The next prime is 263088409. The reversal of 263088401 is 104880362.

It is a Cunningham number, because it is equal to 16220²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263088400 + 1 = 16220^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263088401 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (263088409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131544200 + 131544201.

It is an arithmetic number, because the mean of its divisors is an integer number (131544201).

Almost surely, 2^263088401 is an apocalyptic number.

It is an amenable number.

263088401 is a deficient number, since it is larger than the sum of its proper divisors (1).

263088401 is an equidigital number, since it uses as much as digits as its factorization.

263088401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 263088401 is about 16220.0000308261. Note that the first 4 decimals coincide. The cubic root of 263088401 is about 640.7676344104.

The spelling of 263088401 in words is "two hundred sixty-three million, eighty-eight thousand, four hundred one".