13550280 has 32 divisors (see below), whose sum is σ = 40651200. Its totient is φ = 3613376.

The previous prime is 13550269. The next prime is 13550291. The reversal of 13550280 is 8205531.

It is an interprime number because it is at equal distance from previous prime (13550269) and next prime (13550291).

It is a super-2 number, since 2×13550280² = 367220176156800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13550280.

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 7 ways as a sum of consecutive naturals, for example, 56340 + ... + 56579.

It is an arithmetic number, because the mean of its divisors is an integer number (1270350).

Almost surely, 2^13550280 is an apocalyptic number.

13550280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13550280 is an abundant number, since it is smaller than the sum of its proper divisors (27100920).

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

13550280 is a wasteful number, since it uses less digits than its factorization.

13550280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112933 (or 112929 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 13550280 is about 3681.0704964725. The cubic root of 13550280 is about 238.4054009106.

The spelling of 13550280 in words is "thirteen million, five hundred fifty thousand, two hundred eighty".