50990064 has 20 divisors (see below), whose sum is σ = 131724456. Its totient is φ = 16996672.

The previous prime is 50990063. The next prime is 50990077. The reversal of 50990064 is 46009905.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50990063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531099 + ... + 531194.

Almost surely, 2^50990064 is an apocalyptic number.

It is an amenable number.

50990064 is an abundant number, since it is smaller than the sum of its proper divisors (80734392).

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

50990064 is a wasteful number, since it uses less digits than its factorization.

50990064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062304 (or 1062298 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 50990064 is about 7140.7327355111. The cubic root of 50990064 is about 370.8188923833.

Adding to 50990064 its reverse (46009905), we get a palindrome (96999969).

The spelling of 50990064 in words is "fifty million, nine hundred ninety thousand, sixty-four".