13550120 has 16 divisors (see below), whose sum is σ = 30487860. Its totient is φ = 5420032.

The previous prime is 13550111. The next prime is 13550123. The reversal of 13550120 is 2105531.

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 139876 = 3662^2 + 374^2 .

It is not an unprimeable number, because it can be changed into a prime (13550123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169337 + ... + 169416.

Almost surely, 2^13550120 is an apocalyptic number.

13550120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13550120 is an abundant number, since it is smaller than the sum of its proper divisors (16937740).

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

13550120 is a wasteful number, since it uses less digits than its factorization.

13550120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338764 (or 338760 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13550120 is about 3681.0487635999. The cubic root of 13550120 is about 238.4044625533.

Adding to 13550120 its reverse (2105531), we get a palindrome (15655651).

The spelling of 13550120 in words is "thirteen million, five hundred fifty thousand, one hundred twenty".