2563841 has 16 divisors (see below), whose sum is σ = 3173760. Its totient is φ = 2021760.

The previous prime is 2563837. The next prime is 2563849. The reversal of 2563841 is 1483652.

It is a cyclic number.

It is not a de Polignac number, because 2563841 - 2² = 2563837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2563849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4661 + ... + 5181.

It is an arithmetic number, because the mean of its divisors is an integer number (198360).

2^2563841 is an apocalyptic number.

It is an amenable number.

2563841 is a deficient number, since it is larger than the sum of its proper divisors (609919).

2563841 is a wasteful number, since it uses less digits than its factorization.

2563841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 5760, while the sum is 29.

The square root of 2563841 is about 1601.1998626030. The cubic root of 2563841 is about 136.8664583954.

The spelling of 2563841 in words is "two million, five hundred sixty-three thousand, eight hundred forty-one".