50990018 has 8 divisors (see below), whose sum is σ = 78112512. Its totient is φ = 24952516.

The previous prime is 50989993. The next prime is 50990063. The reversal of 50990018 is 81009905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271130 + ... + 271317.

It is an arithmetic number, because the mean of its divisors is an integer number (9764064).

Almost surely, 2^50990018 is an apocalyptic number.

50990018 is a deficient number, since it is larger than the sum of its proper divisors (27122494).

50990018 is a wasteful number, since it uses less digits than its factorization.

50990018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542496.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 50990018 is about 7140.7295145524. The cubic root of 50990018 is about 370.8187808735.

The spelling of 50990018 in words is "fifty million, nine hundred ninety thousand, eighteen".