24406561 has 2 divisors, whose sum is σ = 24406562. Its totient is φ = 24406560.

The previous prime is 24406541. The next prime is 24406567. The reversal of 24406561 is 16560442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 1366561 = 4800^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 24406561 - 2⁹ = 24406049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24406567) 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, 12203280 + 12203281.

It is an arithmetic number, because the mean of its divisors is an integer number (12203281).

Almost surely, 2^24406561 is an apocalyptic number.

It is an amenable number.

24406561 is a deficient number, since it is larger than the sum of its proper divisors (1).

24406561 is an equidigital number, since it uses as much as digits as its factorization.

24406561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 24406561 is about 4940.2996872659. The cubic root of 24406561 is about 290.0695869474.

The spelling of 24406561 in words is "twenty-four million, four hundred six thousand, five hundred sixty-one".