50808239 has 6 divisors (see below), whose sum is σ = 51539040. Its totient is φ = 50087660.

The previous prime is 50808229. The next prime is 50808259. The reversal of 50808239 is 93280805.

It is a de Polignac number, because none of the positive numbers 2^k-50808239 is a prime.

It is a super-2 number, since 2×50808239² = 5162954300562242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50808199 and 50808208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50808209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2 + ... + 10080.

It is an arithmetic number, because the mean of its divisors is an integer number (8589840).

Almost surely, 2^50808239 is an apocalyptic number.

50808239 is a deficient number, since it is larger than the sum of its proper divisors (730801).

50808239 is an equidigital number, since it uses as much as digits as its factorization.

50808239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221 (or 10150 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 50808239 is about 7127.9898288367. The cubic root of 50808239 is about 370.3776008758.

The spelling of 50808239 in words is "fifty million, eight hundred eight thousand, two hundred thirty-nine".