50121205 has 4 divisors (see below), whose sum is σ = 60145452. Its totient is φ = 40096960.

The previous prime is 50121191. The next prime is 50121217. The reversal of 50121205 is 50212105.

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 13264164 + 36857041 = 3642^2 + 6071^2 .

It is not a de Polignac number, because 50121205 - 2⁵ = 50121173 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012116 + ... + 5012125.

It is an arithmetic number, because the mean of its divisors is an integer number (15036363).

Almost surely, 2^50121205 is an apocalyptic number.

It is an amenable number.

50121205 is a deficient number, since it is larger than the sum of its proper divisors (10024247).

50121205 is a wasteful number, since it uses less digits than its factorization.

50121205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024246.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 50121205 is about 7079.6331119628. The cubic root of 50121205 is about 368.7005916756.

The spelling of 50121205 in words is "fifty million, one hundred twenty-one thousand, two hundred five".