13232556 has 36 divisors (see below), whose sum is σ = 33705672. Its totient is φ = 4377024.

The previous prime is 13232543. The next prime is 13232561. The reversal of 13232556 is 65523231.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3591 + ... + 6273.

Almost surely, 2^13232556 is an apocalyptic number.

It is an amenable number.

13232556 is an abundant number, since it is smaller than the sum of its proper divisors (20473116).

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

13232556 is a wasteful number, since it uses less digits than its factorization.

13232556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 2825 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 13232556 is about 3637.6580378040. The cubic root of 13232556 is about 236.5272850742.

Adding to 13232556 its reverse (65523231), we get a palindrome (78755787).

The spelling of 13232556 in words is "thirteen million, two hundred thirty-two thousand, five hundred fifty-six".