25244230369 has 2 divisors, whose sum is σ = 25244230370. Its totient is φ = 25244230368.

The previous prime is 25244230351. The next prime is 25244230391. The reversal of 25244230369 is 96303244252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25133980369 + 110250000 = 158537^2 + 10500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25244230369 is a prime.

It is a super-2 number, since 2×25244230369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25244230339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12622115184 + 12622115185.

It is an arithmetic number, because the mean of its divisors is an integer number (12622115185).

Almost surely, 2^25244230369 is an apocalyptic number.

It is an amenable number.

25244230369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25244230369 is an equidigital number, since it uses as much as digits as its factorization.

25244230369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 25244230369 in words is "twenty-five billion, two hundred forty-four million, two hundred thirty thousand, three hundred sixty-nine".