2563441 has 2 divisors, whose sum is σ = 2563442. Its totient is φ = 2563440.

The previous prime is 2563433. The next prime is 2563453. The reversal of 2563441 is 1443652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2313441 + 250000 = 1521^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563441 - 2³ = 2563433 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 5⁹ + 6⁷ + 3⁷ + 4⁸ + 4⁹ + 1 .

2563441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2543441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281720 + 1281721.

It is an arithmetic number, because the mean of its divisors is an integer number (1281721).

2^2563441 is an apocalyptic number.

It is an amenable number.

2563441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563441 is an equidigital number, since it uses as much as digits as its factorization.

2563441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 2563441 is about 1601.0749513998. The cubic root of 2563441 is about 136.8593402433.

The spelling of 2563441 in words is "two million, five hundred sixty-three thousand, four hundred forty-one".