13423540440025 has 24 divisors (see below), whose sum is σ = 16959587445504. Its totient is φ = 10536003441600.

The previous prime is 13423540439987. The next prime is 13423540440073. The reversal of 13423540440025 is 52004404532431.

13423540440025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13423540440025 - 2⁹ = 13423540439513 is a prime.

It is a Duffinian number.

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, 129781080 + ... + 129884470.

It is an arithmetic number, because the mean of its divisors is an integer number (706649476896).

Almost surely, 2^{13423540440025} is an apocalyptic number.

It is an amenable number.

13423540440025 is a deficient number, since it is larger than the sum of its proper divisors (3536047005479).

13423540440025 is a wasteful number, since it uses less digits than its factorization.

13423540440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201441 (or 201436 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 13423540440025 its reverse (52004404532431), we get a palindrome (65427944972456).

The spelling of 13423540440025 in words is "thirteen trillion, four hundred twenty-three billion, five hundred forty million, four hundred forty thousand, twenty-five".