25145434432241 has 2 divisors, whose sum is σ = 25145434432242. Its totient is φ = 25145434432240.

The previous prime is 25145434432207. The next prime is 25145434432267. The reversal of 25145434432241 is 14223443454152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23382060250000 + 1763374182241 = 4835500^2 + 1327921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25145434432241 is a prime.

It is a super-2 number, since 2×25145434432241² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25145434432192 and 25145434432201.

It is not a weakly prime, because it can be changed into another prime (25145434432201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572717216120 + 12572717216121.

It is an arithmetic number, because the mean of its divisors is an integer number (12572717216121).

Almost surely, 2^{25145434432241} is an apocalyptic number.

It is an amenable number.

25145434432241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145434432241 is an equidigital number, since it uses as much as digits as its factorization.

25145434432241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843200, while the sum is 44.

Adding to 25145434432241 its reverse (14223443454152), we get a palindrome (39368877886393).

The spelling of 25145434432241 in words is "twenty-five trillion, one hundred forty-five billion, four hundred thirty-four million, four hundred thirty-two thousand, two hundred forty-one".