24225352440581 has 2 divisors, whose sum is σ = 24225352440582. Its totient is φ = 24225352440580.

The previous prime is 24225352440563. The next prime is 24225352440589. The reversal of 24225352440581 is 18504425352242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23588214832900 + 637137607681 = 4856770^2 + 798209^2 .

It is a cyclic number.

It is not a de Polignac number, because 24225352440581 - 2⁶ = 24225352440517 is a prime.

It is a super-2 number, since 2×24225352440581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24225352440589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12112676220290 + 12112676220291.

It is an arithmetic number, because the mean of its divisors is an integer number (12112676220291).

Almost surely, 2^{24225352440581} is an apocalyptic number.

It is an amenable number.

24225352440581 is a deficient number, since it is larger than the sum of its proper divisors (1).

24225352440581 is an equidigital number, since it uses as much as digits as its factorization.

24225352440581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072000, while the sum is 47.

The spelling of 24225352440581 in words is "twenty-four trillion, two hundred twenty-five billion, three hundred fifty-two million, four hundred forty thousand, five hundred eighty-one".