50208281 has 4 divisors (see below), whose sum is σ = 50248464. Its totient is φ = 50168100.

The previous prime is 50208271. The next prime is 50208299. The reversal of 50208281 is 18280205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50208281 is a prime.

It is a super-2 number, since 2×50208281² = 5041742961949922, which contains 22 as substring.

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 50208281.

It is not an unprimeable number, because it can be changed into a prime (50208271) 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, 18155 + ... + 20736.

It is an arithmetic number, because the mean of its divisors is an integer number (12562116).

Almost surely, 2^50208281 is an apocalyptic number.

It is an amenable number.

50208281 is a deficient number, since it is larger than the sum of its proper divisors (40183).

50208281 is a wasteful number, since it uses less digits than its factorization.

50208281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40182.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 50208281 is about 7085.7801969861. The cubic root of 50208281 is about 368.9139837158.

Adding to 50208281 its reverse (18280205), we get a palindrome (68488486).

The spelling of 50208281 in words is "fifty million, two hundred eight thousand, two hundred eighty-one".