50640912 has 90 divisors (see below), whose sum is σ = 164885838. Its totient is φ = 14466816.

The previous prime is 50640893. The next prime is 50640937. The reversal of 50640912 is 21904605.

50640912 is a `hidden beast` number, since 5 + 0 + 640 + 9 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49787136 + 853776 = 7056^2 + 924^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3468 + ... + 10644.

Almost surely, 2^50640912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50640912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82442919).

50640912 is an abundant number, since it is smaller than the sum of its proper divisors (114244926).

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

50640912 is a wasteful number, since it uses less digits than its factorization.

50640912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7205 (or 7189 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 50640912 is about 7116.2428289091. The cubic root of 50640912 is about 369.9705649825.

The spelling of 50640912 in words is "fifty million, six hundred forty thousand, nine hundred twelve".