13425556 has 6 divisors (see below), whose sum is σ = 23494730. Its totient is φ = 6712776.

The previous prime is 13425547. The next prime is 13425569. The reversal of 13425556 is 65552431.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 1245456 = 3490^2 + 1116^2 .

It is a super-3 number, since 3×13425556³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1678191 + ... + 1678198.

Almost surely, 2^13425556 is an apocalyptic number.

It is an amenable number.

13425556 is a deficient number, since it is larger than the sum of its proper divisors (10069174).

13425556 is a wasteful number, since it uses less digits than its factorization.

13425556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356393 (or 3356391 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 13425556 is about 3664.0900643953. The cubic root of 13425556 is about 237.6716749529.

Adding to 13425556 its reverse (65552431), we get a palindrome (78977987).

The spelling of 13425556 in words is "thirteen million, four hundred twenty-five thousand, five hundred fifty-six".