50983890 has 32 divisors (see below), whose sum is σ = 123304896. Its totient is φ = 13490880.

The previous prime is 50983883. The next prime is 50983903. The reversal of 50983890 is 9838905.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2557 + ... + 10416.

It is an arithmetic number, because the mean of its divisors is an integer number (3853278).

Almost surely, 2^50983890 is an apocalyptic number.

50983890 is an abundant number, since it is smaller than the sum of its proper divisors (72321006).

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

50983890 is a wasteful number, since it uses less digits than its factorization.

50983890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13114.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 50983890 is about 7140.3004138481. The cubic root of 50983890 is about 370.8039252304.

The spelling of 50983890 in words is "fifty million, nine hundred eighty-three thousand, eight hundred ninety".