50168890 has 16 divisors (see below), whose sum is σ = 90538632. Its totient is φ = 20015424.

The previous prime is 50168857. The next prime is 50168893. The reversal of 50168890 is 9886105.

It is a Cunningham number, because it is equal to 7083²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 33628401 + 16540489 = 5799^2 + 4067^2 .

It is not an unprimeable number, because it can be changed into a prime (50168893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 10288.

Almost surely, 2^50168890 is an apocalyptic number.

50168890 is a deficient number, since it is larger than the sum of its proper divisors (40369742).

50168890 is a wasteful number, since it uses less digits than its factorization.

50168890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 50168890 is about 7083.0000705916. Note that the first 4 decimals coincide. The cubic root of 50168890 is about 368.8174810908.

The spelling of 50168890 in words is "fifty million, one hundred sixty-eight thousand, eight hundred ninety".