24980561 has 2 divisors, whose sum is σ = 24980562. Its totient is φ = 24980560.

The previous prime is 24980539. The next prime is 24980591. The reversal of 24980561 is 16508942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21446161 + 3534400 = 4631^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 24980561 - 2¹⁸ = 24718417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24980591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12490280 + 12490281.

It is an arithmetic number, because the mean of its divisors is an integer number (12490281).

Almost surely, 2^24980561 is an apocalyptic number.

It is an amenable number.

24980561 is a deficient number, since it is larger than the sum of its proper divisors (1).

24980561 is an equidigital number, since it uses as much as digits as its factorization.

24980561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 24980561 is about 4998.0557219783. The cubic root of 24980561 is about 292.3259675288.

The spelling of 24980561 in words is "twenty-four million, nine hundred eighty thousand, five hundred sixty-one".