50865385 has 4 divisors (see below), whose sum is σ = 61038468. Its totient is φ = 40692304.

The previous prime is 50865383. The next prime is 50865427. The reversal of 50865385 is 58356805.

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 12524521 + 38340864 = 3539^2 + 6192^2 .

It is a cyclic number.

It is not a de Polignac number, because 50865385 - 2¹ = 50865383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50865383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5086534 + ... + 5086543.

It is an arithmetic number, because the mean of its divisors is an integer number (15259617).

Almost surely, 2^50865385 is an apocalyptic number.

It is an amenable number.

50865385 is a deficient number, since it is larger than the sum of its proper divisors (10173083).

50865385 is a wasteful number, since it uses less digits than its factorization.

50865385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173082.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 50865385 is about 7131.9972658436. The cubic root of 50865385 is about 370.5164082063.

The spelling of 50865385 in words is "fifty million, eight hundred sixty-five thousand, three hundred eighty-five".