2541563 has 2 divisors, whose sum is σ = 2541564. Its totient is φ = 2541562.

The previous prime is 2541559. The next prime is 2541593. The reversal of 2541563 is 3651452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2541563 - 2² = 2541559 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270781 + 1270782.

It is an arithmetic number, because the mean of its divisors is an integer number (1270782).

2^2541563 is an apocalyptic number.

2541563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541563 is an equidigital number, since it uses as much as digits as its factorization.

2541563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 2541563 is about 1594.2280263501. The cubic root of 2541563 is about 136.4688797370.

The spelling of 2541563 in words is "two million, five hundred forty-one thousand, five hundred sixty-three".