2563291 has 2 divisors, whose sum is σ = 2563292. Its totient is φ = 2563290.

The previous prime is 2563261. The next prime is 2563303. The reversal of 2563291 is 1923652.

2563291 is nontrivially palindromic in base 6.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2563291 - 2¹³ = 2555099 is a prime.

It is a Chen prime.

2563291 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2563261) 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, 1281645 + 1281646.

It is an arithmetic number, because the mean of its divisors is an integer number (1281646).

2^2563291 is an apocalyptic number.

2563291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563291 is an equidigital number, since it uses as much as digits as its factorization.

2563291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 2563291 is about 1601.0281071861. The cubic root of 2563291 is about 136.8566707453.

The spelling of 2563291 in words is "two million, five hundred sixty-three thousand, two hundred ninety-one".