43555550550555 has 16 divisors (see below), whose sum is σ = 69726611775744. Its totient is φ = 23217049995360.

The previous prime is 43555550550497. The next prime is 43555550550587. The reversal of 43555550550555 is 55505505555534.

43555550550555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43555550550555 - 2¹¹ = 43555550548507 is a prime.

It is a super-2 number, since 2×43555550550555² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43555550550495 and 43555550550504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786031681 + ... + 786087090.

It is an arithmetic number, because the mean of its divisors is an integer number (4357913235984).

Almost surely, 2^{43555550550555} is an apocalyptic number.

43555550550555 is a deficient number, since it is larger than the sum of its proper divisors (26171061225189).

43555550550555 is a wasteful number, since it uses less digits than its factorization.

43555550550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572120626.

The product of its (nonzero) digits is 117187500, while the sum is 57.

The spelling of 43555550550555 in words is "forty-three trillion, five hundred fifty-five billion, five hundred fifty million, five hundred fifty thousand, five hundred fifty-five".