2449561 has 2 divisors, whose sum is σ = 2449562. Its totient is φ = 2449560.

The previous prime is 2449549. The next prime is 2449567. The reversal of 2449561 is 1659442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2157961 + 291600 = 1469^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449561 - 2¹⁷ = 2318489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2449567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224780 + 1224781.

It is an arithmetic number, because the mean of its divisors is an integer number (1224781).

2^2449561 is an apocalyptic number.

It is an amenable number.

2449561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449561 is an equidigital number, since it uses as much as digits as its factorization.

2449561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 2449561 is about 1565.1073445614. The cubic root of 2449561 is about 134.8019225923.

The spelling of 2449561 in words is "two million, four hundred forty-nine thousand, five hundred sixty-one".