43040404055 has 32 divisors (see below), whose sum is σ = 57074347008. Its totient is φ = 30896944000.

The previous prime is 43040403977. The next prime is 43040404067. The reversal of 43040404055 is 55040404034.

It is a de Polignac number, because none of the positive numbers 2^k-43040404055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5935442 + ... + 5942688.

It is an arithmetic number, because the mean of its divisors is an integer number (1783573344).

Almost surely, 2^43040404055 is an apocalyptic number.

43040404055 is a deficient number, since it is larger than the sum of its proper divisors (14033942953).

43040404055 is a wasteful number, since it uses less digits than its factorization.

43040404055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 43040404055 its reverse (55040404034), we get a palindrome (98080808089).

The spelling of 43040404055 in words is "forty-three billion, forty million, four hundred four thousand, fifty-five".