2540711 has 4 divisors (see below), whose sum is σ = 2582424. Its totient is φ = 2499000.

The previous prime is 2540693. The next prime is 2540723. The reversal of 2540711 is 1170452.

2540711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540711 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 (2540761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20765 + ... + 20886.

It is an arithmetic number, because the mean of its divisors is an integer number (645606).

2^2540711 is an apocalyptic number.

2540711 is a deficient number, since it is larger than the sum of its proper divisors (41713).

2540711 is an equidigital number, since it uses as much as digits as its factorization.

2540711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41712.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 2540711 is about 1593.9607899820. The cubic root of 2540711 is about 136.4536286913.

The spelling of 2540711 in words is "two million, five hundred forty thousand, seven hundred eleven".