50910865 has 4 divisors (see below), whose sum is σ = 61093044. Its totient is φ = 40728688.

The previous prime is 50910833. The next prime is 50910877. The reversal of 50910865 is 56801905.

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 36096064 + 14814801 = 6008^2 + 3849^2 .

It is a cyclic number.

It is not a de Polignac number, because 50910865 - 2⁵ = 50910833 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 50910865.

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, 5091082 + ... + 5091091.

It is an arithmetic number, because the mean of its divisors is an integer number (15273261).

Almost surely, 2^50910865 is an apocalyptic number.

It is an amenable number.

50910865 is a deficient number, since it is larger than the sum of its proper divisors (10182179).

50910865 is a wasteful number, since it uses less digits than its factorization.

50910865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182178.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 50910865 is about 7135.1850011054. The cubic root of 50910865 is about 370.6268046079.

The spelling of 50910865 in words is "fifty million, nine hundred ten thousand, eight hundred sixty-five".