50687657 has 4 divisors (see below), whose sum is σ = 50749776. Its totient is φ = 50625540.

The previous prime is 50687633. The next prime is 50687701. The reversal of 50687657 is 75678605.

50687657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75678605 = 5 ⋅15135721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50687657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50687627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29819 + ... + 31472.

It is an arithmetic number, because the mean of its divisors is an integer number (12687444).

Almost surely, 2^50687657 is an apocalyptic number.

It is an amenable number.

50687657 is a deficient number, since it is larger than the sum of its proper divisors (62119).

50687657 is an equidigital number, since it uses as much as digits as its factorization.

50687657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62118.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 50687657 is about 7119.5264589718. The cubic root of 50687657 is about 370.0843659577.

The spelling of 50687657 in words is "fifty million, six hundred eighty-seven thousand, six hundred fifty-seven".