13440225507 has 4 divisors (see below), whose sum is σ = 17920300680. Its totient is φ = 8960150336.

The previous prime is 13440225493. The next prime is 13440225509. The reversal of 13440225507 is 70552204431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70552204431 = 3 ⋅23517401477.

It is a cyclic number.

It is not a de Polignac number, because 13440225507 - 2²⁶ = 13373116643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13440225509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240037582 + ... + 2240037587.

It is an arithmetic number, because the mean of its divisors is an integer number (4480075170).

Almost surely, 2^13440225507 is an apocalyptic number.

13440225507 is a deficient number, since it is larger than the sum of its proper divisors (4480075173).

13440225507 is an equidigital number, since it uses as much as digits as its factorization.

13440225507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480075172.

The product of its (nonzero) digits is 33600, while the sum is 33.

Adding to 13440225507 its reverse (70552204431), we get a palindrome (83992429938).

The spelling of 13440225507 in words is "thirteen billion, four hundred forty million, two hundred twenty-five thousand, five hundred seven".