43555555554 has 32 divisors (see below), whose sum is σ = 100111749120. Its totient is φ = 12374920272.

The previous prime is 43555555529. The next prime is 43555555633. The reversal of 43555555554 is 45555555534.

It is a junction number, because it is equal to n+sod(n) for n = 43555555497 and 43555555506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889234 + ... + 2904269.

It is an arithmetic number, because the mean of its divisors is an integer number (3128492160).

Almost surely, 2^43555555554 is an apocalyptic number.

43555555554 is an abundant number, since it is smaller than the sum of its proper divisors (56556193566).

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

43555555554 is a wasteful number, since it uses less digits than its factorization.

43555555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793694.

The product of its digits is 18750000, while the sum is 51.

The spelling of 43555555554 in words is "forty-three billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-four".