2795561 has 2 divisors, whose sum is σ = 2795562. Its totient is φ = 2795560.

The previous prime is 2795557. The next prime is 2795563. The reversal of 2795561 is 1655972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2785561 + 10000 = 1669^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2795561 - 2² = 2795557 is a prime.

It is a super-2 number, since 2×2795561² = 15630322609442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2795563, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2795563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1397780 + 1397781.

It is an arithmetic number, because the mean of its divisors is an integer number (1397781).

2^2795561 is an apocalyptic number.

It is an amenable number.

2795561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2795561 is an equidigital number, since it uses as much as digits as its factorization.

2795561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 2795561 is about 1671.9931219954. The cubic root of 2795561 is about 140.8714520099.

The spelling of 2795561 in words is "two million, seven hundred ninety-five thousand, five hundred sixty-one".