50665128 has 32 divisors (see below), whose sum is σ = 127431360. Its totient is φ = 16785920.

The previous prime is 50665093. The next prime is 50665133. The reversal of 50665128 is 82156605.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2313 + ... + 10328.

It is an arithmetic number, because the mean of its divisors is an integer number (3982230).

Almost surely, 2^50665128 is an apocalyptic number.

It is an amenable number.

50665128 is an abundant number, since it is smaller than the sum of its proper divisors (76766232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50665128 is a wasteful number, since it uses less digits than its factorization.

50665128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817 (or 12813 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 50665128 is about 7117.9440851976. The cubic root of 50665128 is about 370.0295277141.

The spelling of 50665128 in words is "fifty million, six hundred sixty-five thousand, one hundred twenty-eight".