2175559 has 2 divisors, whose sum is σ = 2175560. Its totient is φ = 2175558.

The previous prime is 2175553. The next prime is 2175577. The reversal of 2175559 is 9555712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2175559 - 2⁷ = 2175431 is a prime.

2175559 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087779 + 1087780.

It is an arithmetic number, because the mean of its divisors is an integer number (1087780).

2^2175559 is an apocalyptic number.

2175559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175559 is an equidigital number, since it uses as much as digits as its factorization.

2175559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15750, while the sum is 34.

The square root of 2175559 is about 1474.9776269490. The cubic root of 2175559 is about 129.5757173616.

It can be divided in two parts, 217 and 5559, that added together give a square (5776 = 76²).

The spelling of 2175559 in words is "two million, one hundred seventy-five thousand, five hundred fifty-nine".