2563741 has 4 divisors (see below), whose sum is σ = 2675232. Its totient is φ = 2452252.

The previous prime is 2563733. The next prime is 2563747. The reversal of 2563741 is 1473652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2563741 - 2³ = 2563733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563747) 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 in 3 ways as a sum of consecutive naturals, for example, 55711 + ... + 55756.

It is an arithmetic number, because the mean of its divisors is an integer number (668808).

2^2563741 is an apocalyptic number.

It is an amenable number.

2563741 is a deficient number, since it is larger than the sum of its proper divisors (111491).

2563741 is a wasteful number, since it uses less digits than its factorization.

2563741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111490.

The product of its digits is 5040, while the sum is 28.

The square root of 2563741 is about 1601.1686357158. The cubic root of 2563741 is about 136.8646789268.

The spelling of 2563741 in words is "two million, five hundred sixty-three thousand, seven hundred forty-one".