2275561 has 2 divisors, whose sum is σ = 2275562. Its totient is φ = 2275560.

The previous prime is 2275549. The next prime is 2275583. The reversal of 2275561 is 1655722.

2275561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 469225 = 1344^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2275561 - 2⁵ = 2275529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2275531) 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, 1137780 + 1137781.

It is an arithmetic number, because the mean of its divisors is an integer number (1137781).

2^2275561 is an apocalyptic number.

It is an amenable number.

2275561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2275561 is an equidigital number, since it uses as much as digits as its factorization.

2275561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 28.

The square root of 2275561 is about 1508.4962711257. The cubic root of 2275561 is about 131.5314155305.

The spelling of 2275561 in words is "two million, two hundred seventy-five thousand, five hundred sixty-one".