20024236417 has 2 divisors, whose sum is σ = 20024236418. Its totient is φ = 20024236416.

The previous prime is 20024236409. The next prime is 20024236459. The reversal of 20024236417 is 71463242002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20012063296 + 12173121 = 141464^2 + 3489^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024236417 - 2³ = 20024236409 is a prime.

It is not a weakly prime, because it can be changed into another prime (20024236487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012118208 + 10012118209.

It is an arithmetic number, because the mean of its divisors is an integer number (10012118209).

Almost surely, 2^20024236417 is an apocalyptic number.

It is an amenable number.

20024236417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024236417 is an equidigital number, since it uses as much as digits as its factorization.

20024236417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 20024236417 its reverse (71463242002), we get a palindrome (91487478419).

The spelling of 20024236417 in words is "twenty billion, twenty-four million, two hundred thirty-six thousand, four hundred seventeen".