13425516 has 36 divisors (see below), whose sum is σ = 36548512. Its totient is φ = 4130784.

The previous prime is 13425481. The next prime is 13425539. The reversal of 13425516 is 61552431.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13425516.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13876 + ... + 14811.

Almost surely, 2^13425516 is an apocalyptic number.

It is an amenable number.

13425516 is an abundant number, since it is smaller than the sum of its proper divisors (23122996).

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

13425516 is a wasteful number, since it uses less digits than its factorization.

13425516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710 (or 28705 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13425516 is about 3664.0846060101. The cubic root of 13425516 is about 237.6714389136.

Adding to 13425516 its reverse (61552431), we get a palindrome (74977947).

The spelling of 13425516 in words is "thirteen million, four hundred twenty-five thousand, five hundred sixteen".