25461442337 has 2 divisors, whose sum is σ = 25461442338. Its totient is φ = 25461442336.

The previous prime is 25461442289. The next prime is 25461442339. The reversal of 25461442337 is 73324416452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19398639841 + 6062802496 = 139279^2 + 77864^2 .

It is a cyclic number.

It is not a de Polignac number, because 25461442337 - 2¹⁴ = 25461425953 is a prime.

Together with 25461442339, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25461442294 and 25461442303.

It is not a weakly prime, because it can be changed into another prime (25461442339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730721168 + 12730721169.

It is an arithmetic number, because the mean of its divisors is an integer number (12730721169).

Almost surely, 2^25461442337 is an apocalyptic number.

It is an amenable number.

25461442337 is a deficient number, since it is larger than the sum of its proper divisors (1).

25461442337 is an equidigital number, since it uses as much as digits as its factorization.

25461442337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 41.

Adding to 25461442337 its reverse (73324416452), we get a palindrome (98785858789).

The spelling of 25461442337 in words is "twenty-five billion, four hundred sixty-one million, four hundred forty-two thousand, three hundred thirty-seven".