2563303 has 2 divisors, whose sum is σ = 2563304. Its totient is φ = 2563302.

The previous prime is 2563291. The next prime is 2563307. The reversal of 2563303 is 3033652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281651 + 1281652.

It is an arithmetic number, because the mean of its divisors is an integer number (1281652).

2^2563303 is an apocalyptic number.

2563303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563303 is an equidigital number, since it uses as much as digits as its factorization.

2563303 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 22.

The square root of 2563303 is about 1601.0318547737. The cubic root of 2563303 is about 136.8568843090.

Adding to 2563303 its reverse (3033652), we get a palindrome (5596955).

The spelling of 2563303 in words is "two million, five hundred sixty-three thousand, three hundred three".