50945905 has 8 divisors (see below), whose sum is σ = 61489512. Its totient is φ = 40520448.

The previous prime is 50945899. The next prime is 50945933. The reversal of 50945905 is 50954905.

It can be written as a sum of positive squares in 4 ways, for example, as 6310144 + 44635761 = 2512^2 + 6681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50945905 is a prime.

It is a Duffinian 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, 28584 + ... + 30313.

It is an arithmetic number, because the mean of its divisors is an integer number (7686189).

Almost surely, 2^50945905 is an apocalyptic number.

It is an amenable number.

50945905 is a deficient number, since it is larger than the sum of its proper divisors (10543607).

50945905 is a wasteful number, since it uses less digits than its factorization.

50945905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59075.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 50945905 is about 7137.6400161398. The cubic root of 50945905 is about 370.7118145231.

The spelling of 50945905 in words is "fifty million, nine hundred forty-five thousand, nine hundred five".