50661648 has 120 divisors (see below), whose sum is σ = 147981600. Its totient is φ = 16169472.

The previous prime is 50661613. The next prime is 50661661. The reversal of 50661648 is 84616605.

50661648 is a `hidden beast` number, since 5 + 0 + 6 + 6 + 1 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569188 + ... + 569276.

It is an arithmetic number, because the mean of its divisors is an integer number (1233180).

Almost surely, 2^50661648 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 50661648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73990800).

50661648 is an abundant number, since it is smaller than the sum of its proper divisors (97319952).

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

50661648 is a wasteful number, since it uses less digits than its factorization.

50661648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 50661648 is about 7117.6996283912. The cubic root of 50661648 is about 370.0210555342.

The spelling of 50661648 in words is "fifty million, six hundred sixty-one thousand, six hundred forty-eight".