13550043 has 8 divisors (see below), whose sum is σ = 19456528. Its totient is φ = 8338464.

The previous prime is 13550039. The next prime is 13550057. The reversal of 13550043 is 34005531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13550043 - 2² = 13550039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13550093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173680 + ... + 173757.

It is an arithmetic number, because the mean of its divisors is an integer number (2432066).

Almost surely, 2^13550043 is an apocalyptic number.

13550043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13550043 is a deficient number, since it is larger than the sum of its proper divisors (5906485).

13550043 is a wasteful number, since it uses less digits than its factorization.

13550043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347453.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 13550043 is about 3681.0383046092. The cubic root of 13550043 is about 238.4040109662.

Adding to 13550043 its reverse (34005531), we get a palindrome (47555574).

The spelling of 13550043 in words is "thirteen million, five hundred fifty thousand, forty-three".