263055901 has 2 divisors, whose sum is σ = 263055902. Its totient is φ = 263055900.

The previous prime is 263055889. The next prime is 263055917. The reversal of 263055901 is 109550362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256160025 + 6895876 = 16005^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 263055901 - 2¹¹ = 263053853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263055101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131527950 + 131527951.

It is an arithmetic number, because the mean of its divisors is an integer number (131527951).

Almost surely, 2^263055901 is an apocalyptic number.

It is an amenable number.

263055901 is a deficient number, since it is larger than the sum of its proper divisors (1).

263055901 is an equidigital number, since it uses as much as digits as its factorization.

263055901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 263055901 is about 16218.9981503174. The cubic root of 263055901 is about 640.7412480885.

The spelling of 263055901 in words is "two hundred sixty-three million, fifty-five thousand, nine hundred one".