13025440240520 has 64 divisors (see below), whose sum is σ = 29647918883520. Its totient is φ = 5149830909184.

The previous prime is 13025440240507. The next prime is 13025440240531. The reversal of 13025440240520 is 2504204452031.

13025440240520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538867 + ... + 5330946.

It is an arithmetic number, because the mean of its divisors is an integer number (463248732555).

Almost surely, 2^{13025440240520} is an apocalyptic number.

13025440240520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13025440240520 is an abundant number, since it is smaller than the sum of its proper divisors (16622478643000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13025440240520 is a wasteful number, since it uses less digits than its factorization.

13025440240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870374 (or 6870370 counting only the distinct ones).

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

Adding to 13025440240520 its reverse (2504204452031), we get a palindrome (15529644692551).

The spelling of 13025440240520 in words is "thirteen trillion, twenty-five billion, four hundred forty million, two hundred forty thousand, five hundred twenty".