50643612 has 72 divisors (see below), whose sum is σ = 137316816. Its totient is φ = 15681024.

The previous prime is 50643577. The next prime is 50643613. The reversal of 50643612 is 21634605.

50643612 is a `hidden beast` number, since 5 + 0 + 6 + 43 + 612 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50643613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50298 + ... + 51294.

It is an arithmetic number, because the mean of its divisors is an integer number (1907178).

Almost surely, 2^50643612 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 50643612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68658408).

50643612 is an abundant number, since it is smaller than the sum of its proper divisors (86673204).

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

50643612 is a wasteful number, since it uses less digits than its factorization.

50643612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 50643612 is about 7116.4325332290. The cubic root of 50643612 is about 369.9771400534.

The spelling of 50643612 in words is "fifty million, six hundred forty-three thousand, six hundred twelve".