50685617 has 2 divisors, whose sum is σ = 50685618. Its totient is φ = 50685616.

The previous prime is 50685601. The next prime is 50685631. The reversal of 50685617 is 71658605.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28633201 + 22052416 = 5351^2 + 4696^2 .

It is a cyclic number.

It is not a de Polignac number, because 50685617 - 2⁴ = 50685601 is a prime.

It is not a weakly prime, because it can be changed into another prime (50685637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25342808 + 25342809.

It is an arithmetic number, because the mean of its divisors is an integer number (25342809).

Almost surely, 2^50685617 is an apocalyptic number.

It is an amenable number.

50685617 is a deficient number, since it is larger than the sum of its proper divisors (1).

50685617 is an equidigital number, since it uses as much as digits as its factorization.

50685617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 50685617 is about 7119.3831895748. The cubic root of 50685617 is about 370.0794010262.

The spelling of 50685617 in words is "fifty million, six hundred eighty-five thousand, six hundred seventeen".