25345013443 has 2 divisors, whose sum is σ = 25345013444. Its totient is φ = 25345013442.

The previous prime is 25345013411. The next prime is 25345013459. The reversal of 25345013443 is 34431054352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25345013443 - 2⁵ = 25345013411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25345013399 and 25345013408.

It is not a weakly prime, because it can be changed into another prime (25345013483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12672506721 + 12672506722.

It is an arithmetic number, because the mean of its divisors is an integer number (12672506722).

Almost surely, 2^25345013443 is an apocalyptic number.

25345013443 is a deficient number, since it is larger than the sum of its proper divisors (1).

25345013443 is an equidigital number, since it uses as much as digits as its factorization.

25345013443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 25345013443 its reverse (34431054352), we get a palindrome (59776067795).

The spelling of 25345013443 in words is "twenty-five billion, three hundred forty-five million, thirteen thousand, four hundred forty-three".