50687717 has 2 divisors, whose sum is σ = 50687718. Its totient is φ = 50687716.

The previous prime is 50687701. The next prime is 50687729. The reversal of 50687717 is 71778605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 6145441 = 6674^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 50687717 - 2⁴ = 50687701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50687797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25343858 + 25343859.

It is an arithmetic number, because the mean of its divisors is an integer number (25343859).

Almost surely, 2^50687717 is an apocalyptic number.

It is an amenable number.

50687717 is a deficient number, since it is larger than the sum of its proper divisors (1).

50687717 is an equidigital number, since it uses as much as digits as its factorization.

50687717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 50687717 is about 7119.5306727340. The cubic root of 50687717 is about 370.0845119831.

The spelling of 50687717 in words is "fifty million, six hundred eighty-seven thousand, seven hundred seventeen".