420050505205 has 8 divisors (see below), whose sum is σ = 504084795552. Its totient is φ = 336024277968.

The previous prime is 420050505197. The next prime is 420050505223. The reversal of 420050505205 is 502505050024.

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 420050505205 - 2³ = 420050505197 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 7 ways as a sum of consecutive naturals, for example, 1900567 + ... + 2110036.

It is an arithmetic number, because the mean of its divisors is an integer number (63010599444).

Almost surely, 2^420050505205 is an apocalyptic number.

It is an amenable number.

420050505205 is a deficient number, since it is larger than the sum of its proper divisors (84034290347).

420050505205 is a wasteful number, since it uses less digits than its factorization.

420050505205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031555.

The product of its (nonzero) digits is 10000, while the sum is 28.

Adding to 420050505205 its reverse (502505050024), we get a palindrome (922555555229).

The spelling of 420050505205 in words is "four hundred twenty billion, fifty million, five hundred five thousand, two hundred five".