43643577055 has 24 divisors (see below), whose sum is σ = 57373378272. Its totient is φ = 31682682816.

The previous prime is 43643577053. The next prime is 43643577071. The reversal of 43643577055 is 55077534634.

43643577055 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 43643577055 - 2¹ = 43643577053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43643577053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129822 + ... + 322708.

It is an arithmetic number, because the mean of its divisors is an integer number (2390557428).

Almost surely, 2^43643577055 is an apocalyptic number.

43643577055 is a deficient number, since it is larger than the sum of its proper divisors (13729801217).

43643577055 is a wasteful number, since it uses less digits than its factorization.

43643577055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193023 (or 192964 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 49.

The spelling of 43643577055 in words is "forty-three billion, six hundred forty-three million, five hundred seventy-seven thousand, fifty-five".