43555113 has 24 divisors (see below), whose sum is σ = 72238400. Its totient is φ = 24771744.

The previous prime is 43555091. The next prime is 43555133. The reversal of 43555113 is 31155534.

It is not a de Polignac number, because 43555113 - 2⁵ = 43555081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43555133) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 12918 + ... + 15936.

Almost surely, 2^43555113 is an apocalyptic number.

It is an amenable number.

43555113 is a deficient number, since it is larger than the sum of its proper divisors (28683287).

43555113 is a wasteful number, since it uses less digits than its factorization.

43555113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261 (or 3258 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 43555113 is about 6599.6297623427. The cubic root of 43555113 is about 351.8409475338.

The spelling of 43555113 in words is "forty-three million, five hundred fifty-five thousand, one hundred thirteen".