50787648 has 140 divisors (see below), whose sum is σ = 153608532. Its totient is φ = 16588800.

The previous prime is 50787637. The next prime is 50787661. The reversal of 50787648 is 84678705.

50787648 is a `hidden beast` number, since 507 + 87 + 64 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38340864 + 12446784 = 6192^2 + 3528^2 .

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 502798 + ... + 502898.

Almost surely, 2^50787648 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 50787648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76804266).

50787648 is an abundant number, since it is smaller than the sum of its proper divisors (102820884).

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

50787648 is a wasteful number, since it uses less digits than its factorization.

50787648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 50787648 is about 7126.5453061073. The cubic root of 50787648 is about 370.3275599387.

The spelling of 50787648 in words is "fifty million, seven hundred eighty-seven thousand, six hundred forty-eight".