50420002405 has 4 divisors (see below), whose sum is σ = 60504002892. Its totient is φ = 40336001920.

The previous prime is 50420002393. The next prime is 50420002427.

50420002405 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18007761249 + 32412241156 = 134193^2 + 180034^2 .

It is not a de Polignac number, because 50420002405 - 2⁷ = 50420002277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5042000236 + ... + 5042000245.

It is an arithmetic number, because the mean of its divisors is an integer number (15126000723).

Almost surely, 2^50420002405 is an apocalyptic number.

It is an amenable number.

50420002405 is a deficient number, since it is larger than the sum of its proper divisors (10084000487).

50420002405 is a wasteful number, since it uses less digits than its factorization.

50420002405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084000486.

The product of its (nonzero) digits is 1600, while the sum is 22.

It can be divided in two parts, 5042000 and 2405, that added together give a palindrome (5044405).

The spelling of 50420002405 in words is "fifty billion, four hundred twenty million, two thousand, four hundred five".