50816731 has 4 divisors (see below), whose sum is σ = 58076272. Its totient is φ = 43557192.

The previous prime is 50816693. The next prime is 50816743. The reversal of 50816731 is 13761805.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50816731 - 2¹⁵ = 50783963 is a prime.

It is a super-2 number, since 2×50816731² = 5164680299052722, 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 = 50816693 and 50816702.

It is not an unprimeable number, because it can be changed into a prime (50817731) 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, 3629760 + ... + 3629773.

It is an arithmetic number, because the mean of its divisors is an integer number (14519068).

Almost surely, 2^50816731 is an apocalyptic number.

50816731 is a deficient number, since it is larger than the sum of its proper divisors (7259541).

50816731 is an equidigital number, since it uses as much as digits as its factorization.

50816731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259540.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 50816731 is about 7128.5854838109. The cubic root of 50816731 is about 370.3982344806.

The spelling of 50816731 in words is "fifty million, eight hundred sixteen thousand, seven hundred thirty-one".