50641405 has 4 divisors (see below), whose sum is σ = 60769692. Its totient is φ = 40513120.

The previous prime is 50641399. The next prime is 50641421. The reversal of 50641405 is 50414605.

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 30669444 + 19971961 = 5538^2 + 4469^2 .

It is not a de Polignac number, because 50641405 - 2⁵ = 50641373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50641405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5064136 + ... + 5064145.

It is an arithmetic number, because the mean of its divisors is an integer number (15192423).

Almost surely, 2^50641405 is an apocalyptic number.

It is an amenable number.

50641405 is a deficient number, since it is larger than the sum of its proper divisors (10128287).

50641405 is a wasteful number, since it uses less digits than its factorization.

50641405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128286.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 50641405 is about 7116.2774678901. The cubic root of 50641405 is about 369.9717655592.

The spelling of 50641405 in words is "fifty million, six hundred forty-one thousand, four hundred five".