50400205 has 4 divisors (see below), whose sum is σ = 60480252. Its totient is φ = 40320160.

The previous prime is 50400197. The next prime is 50400241. The reversal of 50400205 is 50200405.

It is a happy number.

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 12096484 + 38303721 = 3478^2 + 6189^2 .

It is not a de Polignac number, because 50400205 - 2³ = 50400197 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040016 + ... + 5040025.

It is an arithmetic number, because the mean of its divisors is an integer number (15120063).

Almost surely, 2^50400205 is an apocalyptic number.

It is an amenable number.

50400205 is a deficient number, since it is larger than the sum of its proper divisors (10080047).

50400205 is a wasteful number, since it uses less digits than its factorization.

50400205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080046.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 50400205 is about 7099.3101777567. The cubic root of 50400205 is about 369.3834509057.

Adding to 50400205 its product of nonzero digits (200), we get a palindrome (50400405).

It can be divided in two parts, 5040020 and 5, that added together give a square (5040025 = 2245²).

The spelling of 50400205 in words is "fifty million, four hundred thousand, two hundred five".