2505743 has 2 divisors, whose sum is σ = 2505744. Its totient is φ = 2505742.

The previous prime is 2505707. The next prime is 2505773. The reversal of 2505743 is 3475052.

2505743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505743 - 2⁸ = 2505487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505773) 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 as a sum of consecutive naturals, namely, 1252871 + 1252872.

It is an arithmetic number, because the mean of its divisors is an integer number (1252872).

2^2505743 is an apocalyptic number.

2505743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505743 is an equidigital number, since it uses as much as digits as its factorization.

2505743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2505743 is about 1582.9538843567. The cubic root of 2505743 is about 135.8247273540.

The spelling of 2505743 in words is "two million, five hundred five thousand, seven hundred forty-three".