2260561 has 2 divisors, whose sum is σ = 2260562. Its totient is φ = 2260560.

The previous prime is 2260549. The next prime is 2260567. The reversal of 2260561 is 1650622.

2260561 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 can be written as a sum of positive squares in only one way, i.e., 2119936 + 140625 = 1456^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2260561 - 2⁵ = 2260529 is a prime.

It is a super-2 number, since 2×2260561² = 10220272069442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2260567) 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, 1130280 + 1130281.

It is an arithmetic number, because the mean of its divisors is an integer number (1130281).

2^2260561 is an apocalyptic number.

It is an amenable number.

2260561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2260561 is an equidigital number, since it uses as much as digits as its factorization.

2260561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2260561 is about 1503.5162120842. The cubic root of 2260561 is about 131.2417694007.

The spelling of 2260561 in words is "two million, two hundred sixty thousand, five hundred sixty-one".