263528003 has 2 divisors, whose sum is σ = 263528004. Its totient is φ = 263528002.

The previous prime is 263527987. The next prime is 263528059. The reversal of 263528003 is 300825362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263528003 - 2⁴ = 263527987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (263528063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131764001 + 131764002.

It is an arithmetic number, because the mean of its divisors is an integer number (131764002).

Almost surely, 2^263528003 is an apocalyptic number.

263528003 is a deficient number, since it is larger than the sum of its proper divisors (1).

263528003 is an equidigital number, since it uses as much as digits as its factorization.

263528003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 263528003 is about 16233.5456077839. The cubic root of 263528003 is about 641.1243281902.

The spelling of 263528003 in words is "two hundred sixty-three million, five hundred twenty-eight thousand, three".