50158009 has 24 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 42804960.

The previous prime is 50157971. The next prime is 50158027. The reversal of 50158009 is 90085105.

It is not a de Polignac number, because 50158009 - 2⁷ = 50157881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50158079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186327 + ... + 186595.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 2^50158009 is an apocalyptic number.

It is an amenable number.

50158009 is a deficient number, since it is larger than the sum of its proper divisors (8447111).

50158009 is a wasteful number, since it uses less digits than its factorization.

50158009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 50158009 is about 7082.2319222121. The cubic root of 50158009 is about 368.7908152083.

The spelling of 50158009 in words is "fifty million, one hundred fifty-eight thousand, nine".