50688890 has 32 divisors (see below), whose sum is σ = 107097984. Its totient is φ = 16908480.

The previous prime is 50688871. The next prime is 50688893. The reversal of 50688890 is 9888605.

It is not an unprimeable number, because it can be changed into a prime (50688893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7196 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (3346812).

Almost surely, 2^50688890 is an apocalyptic number.

50688890 is an abundant number, since it is smaller than the sum of its proper divisors (56409094).

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

50688890 is a wasteful number, since it uses less digits than its factorization.

50688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19622.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 50688890 is about 7119.6130512831. The cubic root of 50688890 is about 370.0873667562.

The spelling of 50688890 in words is "fifty million, six hundred eighty-eight thousand, eight hundred ninety".