2055709 has 2 divisors, whose sum is σ = 2055710. Its totient is φ = 2055708.

The previous prime is 2055707. The next prime is 2055719. The reversal of 2055709 is 9075502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1747684 + 308025 = 1322^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055709 - 2¹ = 2055707 is a prime.

Together with 2055707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027854 + 1027855.

It is an arithmetic number, because the mean of its divisors is an integer number (1027855).

2^2055709 is an apocalyptic number.

It is an amenable number.

2055709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055709 is an equidigital number, since it uses as much as digits as its factorization.

2055709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 2055709 is about 1433.7743895048. The cubic root of 2055709 is about 127.1512241625.

The spelling of 2055709 in words is "two million, fifty-five thousand, seven hundred nine".