50718131 has 2 divisors, whose sum is σ = 50718132. Its totient is φ = 50718130.

The previous prime is 50718121. The next prime is 50718167. The reversal of 50718131 is 13181705.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50718131 - 2¹⁸ = 50455987 is a prime.

It is a super-2 number, since 2×50718131² = 5144657624266322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50718131.

It is not a weakly prime, because it can be changed into another prime (50718121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25359065 + 25359066.

It is an arithmetic number, because the mean of its divisors is an integer number (25359066).

Almost surely, 2^50718131 is an apocalyptic number.

50718131 is a deficient number, since it is larger than the sum of its proper divisors (1).

50718131 is an equidigital number, since it uses as much as digits as its factorization.

50718131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 50718131 is about 7121.6663078243. Note that the first 3 decimals coincide. The cubic root of 50718131 is about 370.1585174195.

Adding to 50718131 its reverse (13181705), we get a palindrome (63899836).

The spelling of 50718131 in words is "fifty million, seven hundred eighteen thousand, one hundred thirty-one".