13225516 has 6 divisors (see below), whose sum is σ = 23144660. Its totient is φ = 6612756.

The previous prime is 13225453. The next prime is 13225517. The reversal of 13225516 is 61552231.

13225516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13225517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653186 + ... + 1653193.

Almost surely, 2^13225516 is an apocalyptic number.

It is an amenable number.

13225516 is a deficient number, since it is larger than the sum of its proper divisors (9919144).

13225516 is a wasteful number, since it uses less digits than its factorization.

13225516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306383 (or 3306381 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 13225516 is about 3636.6902535135. The cubic root of 13225516 is about 236.4853317919.

Adding to 13225516 its reverse (61552231), we get a palindrome (74777747).

The spelling of 13225516 in words is "thirteen million, two hundred twenty-five thousand, five hundred sixteen".