50161689 has 24 divisors (see below), whose sum is σ = 78054912. Its totient is φ = 30951360.

The previous prime is 50161681. The next prime is 50161711. The reversal of 50161689 is 98616105.

It is not a de Polignac number, because 50161689 - 2³ = 50161681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50161681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2509 + ... + 10325.

It is an arithmetic number, because the mean of its divisors is an integer number (3252288).

Almost surely, 2^50161689 is an apocalyptic number.

It is an amenable number.

50161689 is a deficient number, since it is larger than the sum of its proper divisors (27893223).

50161689 is a wasteful number, since it uses less digits than its factorization.

50161689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877 (or 7874 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 50161689 is about 7082.4917225508. The cubic root of 50161689 is about 368.7998341536.

The spelling of 50161689 in words is "fifty million, one hundred sixty-one thousand, six hundred eighty-nine".