13425420425 has 24 divisors (see below), whose sum is σ = 17532910560. Its totient is φ = 10169712000.

The previous prime is 13425420383. The next prime is 13425420431. The reversal of 13425420425 is 52402452431.

It is not a de Polignac number, because 13425420425 - 2¹⁶ = 13425354889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13425420391 and 13425420400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1059125 + ... + 1071725.

It is an arithmetic number, because the mean of its divisors is an integer number (730537940).

Almost surely, 2^13425420425 is an apocalyptic number.

It is an amenable number.

13425420425 is a deficient number, since it is larger than the sum of its proper divisors (4107490135).

13425420425 is a wasteful number, since it uses less digits than its factorization.

13425420425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14873 (or 14868 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 13425420425 its reverse (52402452431), we get a palindrome (65827872856).

The spelling of 13425420425 in words is "thirteen billion, four hundred twenty-five million, four hundred twenty thousand, four hundred twenty-five".