50429989 has 4 divisors (see below), whose sum is σ = 50453824. Its totient is φ = 50406156.

The previous prime is 50429957. The next prime is 50429999. The reversal of 50429989 is 98992405.

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: 98992405 = 5 ⋅19798481.

It is a cyclic number.

It is not a de Polignac number, because 50429989 - 2⁵ = 50429957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50429999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8397 + ... + 13090.

It is an arithmetic number, because the mean of its divisors is an integer number (12613456).

Almost surely, 2^50429989 is an apocalyptic number.

It is an amenable number.

50429989 is a deficient number, since it is larger than the sum of its proper divisors (23835).

50429989 is a wasteful number, since it uses less digits than its factorization.

50429989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23834.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 50429989 is about 7101.4075365381. The cubic root of 50429989 is about 369.4561989581.

The spelling of 50429989 in words is "fifty million, four hundred twenty-nine thousand, nine hundred eighty-nine".