24500561 has 2 divisors, whose sum is σ = 24500562. Its totient is φ = 24500560.

The previous prime is 24500527. The next prime is 24500569. The reversal of 24500561 is 16500542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 8850625 = 3956^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 24500561 - 2¹⁰ = 24499537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24500569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12250280 + 12250281.

It is an arithmetic number, because the mean of its divisors is an integer number (12250281).

Almost surely, 2^24500561 is an apocalyptic number.

It is an amenable number.

24500561 is a deficient number, since it is larger than the sum of its proper divisors (1).

24500561 is an equidigital number, since it uses as much as digits as its factorization.

24500561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 24500561 is about 4949.8041375392. The cubic root of 24500561 is about 290.4415034836.

The spelling of 24500561 in words is "twenty-four million, five hundred thousand, five hundred sixty-one".