50568389 has 4 divisors (see below), whose sum is σ = 50595756. Its totient is φ = 50541024.

The previous prime is 50568383. The next prime is 50568391. The reversal of 50568389 is 98386505.

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 14364100 + 36204289 = 3790^2 + 6017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50568389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50568383) 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, 10694 + ... + 14679.

It is an arithmetic number, because the mean of its divisors is an integer number (12648939).

Almost surely, 2^50568389 is an apocalyptic number.

It is an amenable number.

50568389 is a deficient number, since it is larger than the sum of its proper divisors (27367).

50568389 is a wasteful number, since it uses less digits than its factorization.

50568389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27366.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 50568389 is about 7111.1454070354. The cubic root of 50568389 is about 369.7938686260.

The spelling of 50568389 in words is "fifty million, five hundred sixty-eight thousand, three hundred eighty-nine".