50443985 has 4 divisors (see below), whose sum is σ = 60532788. Its totient is φ = 40355184.

The previous prime is 50443979. The next prime is 50443999. The reversal of 50443985 is 58934405.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58934405 = 5 ⋅11786881.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 39639616 = 3287^2 + 6296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50443985 is a prime.

It is a Duffinian 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, 5044394 + ... + 5044403.

It is an arithmetic number, because the mean of its divisors is an integer number (15133197).

Almost surely, 2^50443985 is an apocalyptic number.

It is an amenable number.

50443985 is a deficient number, since it is larger than the sum of its proper divisors (10088803).

50443985 is a wasteful number, since it uses less digits than its factorization.

50443985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088802.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 50443985 is about 7102.3929066196. The cubic root of 50443985 is about 369.4903745929.

The spelling of 50443985 in words is "fifty million, four hundred forty-three thousand, nine hundred eighty-five".