43550424451 has 4 divisors (see below), whose sum is σ = 43552696432. Its totient is φ = 43548152472.

The previous prime is 43550424443. The next prime is 43550424479. The reversal of 43550424451 is 15442405534.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43550424451 - 2³ = 43550424443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43550424451.

It is not an unprimeable number, because it can be changed into a prime (43550424481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106991 + ... + 1145656.

It is an arithmetic number, because the mean of its divisors is an integer number (10888174108).

Almost surely, 2^43550424451 is an apocalyptic number.

43550424451 is a deficient number, since it is larger than the sum of its proper divisors (2271981).

43550424451 is a wasteful number, since it uses less digits than its factorization.

43550424451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271980.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 43550424451 its reverse (15442405534), we get a palindrome (58992829985).

The spelling of 43550424451 in words is "forty-three billion, five hundred fifty million, four hundred twenty-four thousand, four hundred fifty-one".