13249556 has 6 divisors (see below), whose sum is σ = 23186730. Its totient is φ = 6624776.

The previous prime is 13249543. The next prime is 13249583. The reversal of 13249556 is 65594231.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 2464900 = 3284^2 + 1570^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656191 + ... + 1656198.

It is an arithmetic number, because the mean of its divisors is an integer number (3864455).

Almost surely, 2^13249556 is an apocalyptic number.

It is an amenable number.

13249556 is a deficient number, since it is larger than the sum of its proper divisors (9937174).

13249556 is a wasteful number, since it uses less digits than its factorization.

13249556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312393 (or 3312391 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 13249556 is about 3639.9939560389. The cubic root of 13249556 is about 236.6285314031.

The spelling of 13249556 in words is "thirteen million, two hundred forty-nine thousand, five hundred fifty-six".