13550244 has 12 divisors (see below), whose sum is σ = 31617264. Its totient is φ = 4516744.

The previous prime is 13550237. The next prime is 13550263. The reversal of 13550244 is 44205531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13550244² = 367218224919072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564582 + ... + 564605.

It is an arithmetic number, because the mean of its divisors is an integer number (2634772).

Almost surely, 2^13550244 is an apocalyptic number.

It is an amenable number.

13550244 is an abundant number, since it is smaller than the sum of its proper divisors (18067020).

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

13550244 is a wasteful number, since it uses less digits than its factorization.

13550244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129194 (or 1129192 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 13550244 is about 3681.0656065873. The cubic root of 13550244 is about 238.4051897809.

Adding to 13550244 its reverse (44205531), we get a palindrome (57755775).

The spelling of 13550244 in words is "thirteen million, five hundred fifty thousand, two hundred forty-four".