24990913 has 2 divisors, whose sum is σ = 24990914. Its totient is φ = 24990912.

The previous prime is 24990899. The next prime is 24990923. The reversal of 24990913 is 31909942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14311089 + 10679824 = 3783^2 + 3268^2 .

It is a cyclic number.

It is not a de Polignac number, because 24990913 - 2¹⁷ = 24859841 is a prime.

It is not a weakly prime, because it can be changed into another prime (24990923) 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, 12495456 + 12495457.

It is an arithmetic number, because the mean of its divisors is an integer number (12495457).

Almost surely, 2^24990913 is an apocalyptic number.

It is an amenable number.

24990913 is a deficient number, since it is larger than the sum of its proper divisors (1).

24990913 is an equidigital number, since it uses as much as digits as its factorization.

24990913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 24990913 is about 4999.0912174114. The cubic root of 24990913 is about 292.3663421291.

The spelling of 24990913 in words is "twenty-four million, nine hundred ninety thousand, nine hundred thirteen".