50003405665 has 8 divisors (see below), whose sum is σ = 60339306240. Its totient is φ = 39779244912.

The previous prime is 50003405663. The next prime is 50003405677. The reversal of 50003405665 is 56650430005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50003405665 - 2¹ = 50003405663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50003405665.

It is not an unprimeable number, because it can be changed into a prime (50003405663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27933969 + ... + 27935758.

It is an arithmetic number, because the mean of its divisors is an integer number (7542413280).

Almost surely, 2^50003405665 is an apocalyptic number.

It is an amenable number.

50003405665 is a deficient number, since it is larger than the sum of its proper divisors (10335900575).

50003405665 is a wasteful number, since it uses less digits than its factorization.

50003405665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55869911.

The product of its (nonzero) digits is 54000, while the sum is 34.

It can be divided in two parts, 5000340 and 5665, that added together give a palindrome (5006005).

The spelling of 50003405665 in words is "fifty billion, three million, four hundred five thousand, six hundred sixty-five".